When Should I Replace My
Filter Cartridge Element?
Pool & Spa filter cartridge elements clog up over time due to oils, dirt, bacteria, algae, and other micro-organisms that adhere to the cartridge elements. Pool and Spa filter cartridges do not have a specific life span and can vary widely depending on bather loads, natural elements, chemical balances and proper cleaning methodology. Each time you clean the cartridge you need to inspect it carefully for remaining dirt or debris.
Reasons that may indicate the need for a new filter cartridge:
1. Filter cartridges are made of a fibrous material, generally reinforced polyester, which gradually wears and loosens becoming more porous over time. Look for small tears in the media material. If small tears or holes are present, this allows larger particles to pass through the filter and back into the pool or spa water. This lessens the effectiveness of pool or spa sanitizers which will cause more chemical expense to maintain proper sanitation. If tears or holes are present, discard the filter and replace it with a new one.
2. The ends caps have become brittle, cracked or discoloured.
3. You notice that you have to clean the filter cartridge more often than normal or you seem to be spending more money than normal on chemicals. This is a major indicator that it may be time to replace the cartridge element.
4. The water flow rate has been reduced due to built-up debris in the element that cannot be cleaned, or if the water flow rate is still low after cleaning your cartridge.
5. If the pressure on your pool filter remains or climbs back up quickly (within two or three days) over normal operating pressure after you have cleaned the cartridge then it is time for a new cartridge.
6. The centre core (if applicable) of the cartridge is misshaped, collapsed, separated from the media or any combination of these, then it is time to replace your cartridge filter.
If any of the above are present, it is highly recommended that you discard your old or damaged filter cartridge and replace it with a new one.
NOTE: It is always a good idea to keep a backup filter hand. Then, while you are cleaning your current cartridge you can put the backup cartridge in the pool or spa. This can be very beneficial! If you detect a problem with your filter cartridge you have a backup available immediately.
How To Identify Your
Cartridge Filter Element
Measure the length and outside diameter in millimetres, and identify the top and bottom endcap style. Certain styles of endcap (i.e. open, female thread etc.) may require an inside diameter measurement as well.
Find the length measurement in column 2 of the chart below. Then find the length with the matching outside diameter and endcaps. Once you have found the element you require, click on model name in column 1 to go to that product page.
You may get multiple elements with the same measurements - the difference will be the amount of pleats in the element. More pleats increase the surface area giving increased filtering capacity. Most cartridge filters have a number in the model name which signifies the surface are in square feet i.e. 'Waterco Opal 90' has a surface area of 90 square feet.
| MODEL |
LENGTH (MM) |
OUTSIDE DIAMETER (MM) | TOP ENDCAP | BOTTOM ENDCAP | COMMENTS |
| Bestway 2 | 85 | 70 | 28mm hole | 27mm hole | Original is 77mm diameter |
| Intex E | 85 | 70 | 27mm hole | 27mm hole | Original is 77mm diameter |
| Krystal Clear 4 / Sand n Sun | 95 | 110 | 50mm hole | 50mm hole | |
| Intex D Small | 95 | 108 | 52mm hole | 52mm hole | Note: There are two types of Intex D cartridges, please verify |
| Waterway 10 | 102 | 108 | 53mm hole | 53mm hole | |
| Arctic Spas 12 | 110 | 127 | Semicircle handle |
SAE internal thread |
|
| Waterway DSF35 | 117 | 125 | 54mm hole | 54mm hole | Set of 2. Combined height of 234mm |
| Rainbow RDC10 | 117 | 125 | 54mm hole | 54mm hole | |
| Sunflow SF1500 | 117 | 145 | Closed | 38mm hole | |
| Stern Flow 10sq ft | 117 | 145 | Closed | 40mm hole | |
| Stern Flow 15sq ft | 117 | 145 | Closed | 40mm hole | |
| Top Load 12 | 118 | 118 | Moulded cone handle |
46mm MPT thread |
|
| Finsbury Splasher 800 | 119 | 135 | Closed | 55mm hole | |
| Spa n a Box | 123 | 70 | 27mm hole | 27mm hole | |
| Sundance Microclean | 127 | 195 | 120mm hole | 120mm hole | |
| Jacuzzi 13 | 127 | 120 | Closed | 49mm hole | Replaces hourglass polyspun cartridge |
| Bestway 5 | 130 | 115 | 50mm hole | 50mm hole | |
| Spaquip Series 1000 C40 | 135 | 143 | 53mm hole | 53mm hole | |
| Lay Z Spa 6 | 140 | 110 | 50mm hole | 50mm hole | |
| Splash Tub 16 | 140 | 125 | Closed | 48mm hole | |
| Master Spas 32 | 140 | 127 | SAE internal thread |
SAE internal thread |
Normally in Microban |
| Soft Tub Top Load C25 | 140 | 143 | Semicircle handle |
46mm MPT thread |
Original is 152mm dia |
| Sunrise Spas 25 | 140 | 152 | Semicircle handle |
46mm MPT thread |
|
| Sunrise Spas 24 | 140 | 152 | Semicircle handle |
49mm SAE thread |
|
| Soft Tub Top Load | 140 | 178 | Semicircle handle |
59mm MPT thread |
|
| Bullfrog 25 (Hi Flo) | 146 | 200 | Open(with lugs) | 59mm SAE thread |
Fits Nature2 stick. For Spa Industries Spas |
| Bullfrog 50 | 146 | 200 | Semicircle handle |
59mm SAE thread |
|
| Sovereign Spas 35 | 149 | 143 | Closed | 46mm MPT thread |
|
| Saratoga Spas 13.5 | 151 | 118 | Moulded cone handle |
46mm MPT thread |
Saratoga Spas |
| Icon Spas 3.7 Skim | 152 | 70 | 27mm hole | 27mm hole | |
| Sunrise 26 | 152 | 152 | Semicircle handle |
46mm MPT thread |
|
| Canadian Spas | 160 | 143 | Semicircle handle |
46mm SAE thread |
Usually antimicrobial |
| Waterway DSF50 | 167 | 125 | 54mm hole | 54mm hole | Set of 2. Combined height of 334mm |
| Freeflow Spas TLX, RLX 25 | 168 | 125 | 54mm hole | 46mm MPT thread |
|
| Rainbow RDC30 | 168 | 125 | 54mm hole | 54mm hole | |
| Freeflow Spas CLX 25 | 168 | 125 | Closed | 46mm MPT thread |
|
| Soft Tub 20 | 171 | 118 | Moulded cone handle |
46mm MPT thread |
|
| Vita Spas 15 | 171 | 117 | Moulded cone handle |
48mm hole with slots |
|
| Vita Spas 302 (AB5-300) | 171 | 216 | Semicircle handle |
59mm MPT thread |
Normally antimicrobial |
| Strong Industries 20 | 172 | 118 | Moulded cone handle |
49mm SAE thread |
Futura Spas |
| Master Spas Eco-pur 45 | 175 | 205 | 103mm hole | 103mm hole | Outer Cartridge Normally in Microban |
| Emaux CF25 | 176 | 185 | 77mm hole | 77mm hole | |
| Aqueous Spa | 176 | 143 | Closed | 46mm MPT Thread |
|
| Blue Label Gemini 25 / Jazzi 1 | 176 | 143 | Closed | 49mm SAE thread |
|
| Blue Label Hydrus 25 / Jazzi 2 | 176 | 143 | Closed | 58mm MPT thread |
|
| Wellis Spas 25 | 176 | 143 | Semicircle handle |
46mm MPT Thread |
|
| Artesian 40 | 178 | 152 | 48mm hole | 59mm MPT thread |
Replaces Purple Artesian QUALIFLO cartridge |
| Artesian 26 | 178 | 152 | Semicircle handle |
46mm MPT Thread |
|
| Vita Spas 30 | 181 | 216 | 48mm hole with raised ring |
60mm hole | |
| Master Spas Eco-pur 10 | 181 | 98 | 54mm hole | 54mm hole | Normally in Microban |
| Master Spas 40 | 182 | 178 | Semicircle handle |
59mm MPT thread |
Legacy and Freedom models |
| Master Spas 30 | 184 | 177 | 103mm hole | 103mm hole | Micro filter 2002-2005 |
| Vita Spas 50 | 184 | 216 | 48mm hole | 60mm hole with slots |
|
| Vita Spas 502 | 184 | 216 | Semicircle handle |
59mm MPT thread |
|
| MAGNUM 25 | 185 | 185 | 77mm hole | 77mm hole | |
| Universal - 4sq ft | 191 | 70 | 27mm hole | 27mm hole | |
| Vita Spas 25 | 191 | 118 | Closed | 46mm MPT thread |
Original is 108mm OD |
| Soft Tub 36 New (large ring) | 191 | 151 | Closed | 51mm hole w/ 141mm raised push fit ring |
Large off centre push fit ring. New type (post 2010) |
| Soft Tub 35 Old (small ring) | 191 | 191 | Closed | 51mm hole w/ 105mm raised push fit ring |
Small off centre push fit ring. Old type (pre 2010) |
| Waterway Skim 40 | 194 | 150 | Handle | 46mm MPT thread |
|
| Waterco Multi Cyclone C40 | 197 | 160 | 53mm hole | 53mm hole | |
| Spa 2 Go | 197 | 115 | 54mm hole | 54mm hole | |
| Artesian 41 D-Spa | 197 | 152 | Semicircle handle |
59mm MPT thread |
D-Spa |
| Jazzi Spa 3 | 200 | 170 | Semicircle handle |
58mm MPT thread |
|
| LA Spa 45 with 85mm MPT thread | 200 | 127 | Semicircle handle |
85mm MPT thread |
retro fit for bag filter |
| Master Spas 25 | 203 | 165 | 103mm raised ring |
103mm rebated ring |
Outer Cartridge Normally in Microban |
| General Foam Plastics 7 | 203 | 121 | 45mm hole | 45mm hole | |
| General Foam Plastics 10 | 203 | 121 | 45mm hole | 45mm hole | |
| Muskin 8 | 203 | 203 | 56mm hole | 56mm hole | No center core |
| O2 Spas C24 | 203 | 125 | Closed | 46mm MPT thread |
|
| Muskin 9 | 203 | 109 | Closed | 46mm MPT thread |
|
| Top Load 19 | 203 | 118 | Moulded cone handle |
46mm MPT thread |
|
| Top Load 24 | 203 | 118 | Moulded cone handle |
46mm MPT thread |
Dream Maker Spas |
| Top Load 241 | 203 | 118 | Moulded cone handle |
48mm keyed hole |
Dream Maker Spas |
| Sunrise Spas 36 | 203 | 152 | Semicircle handle |
46mm MPT thread |
|
| Coleman Spas 32 | 203 | 178 | Semicircle handle |
46mm MPT thread |
|
| Artesian 35 | 203 | 152 | Semicircle handle |
59mm MPT thread |
Resort Line Spas |
| Intex A | 204 | 110 | 50mm hole | 50mm hole | |
| Monarch Spas Skim | 204 | 143 | Closed | 46mm MPT thread |
|
| Sovereign Spas Skim | 204 | 143 | Closed | 46mm MPT thread |
|
| Waterway Top Load 50 Skim | 204 | 150 | Handle | 49mm SAE thread |
|
| Leisurerite C100 - Bottom | 204 | 143 | Open | 49mm SAE thread |
combined with top makes 2 per set. 421mm overall. |
| Elite Spas 35 | 204 | 143 | Semicircle handle |
46mm MPT thread |
Elite Spas by Maax |
| Maax Spas 35 (Canada) | 204 | 143 | Semicircle handle |
49mm SAE thread |
|
| Sensation Spas Skim | 204 | 143 | Semicircle handle |
54mm extended SAE thread |
|
| Leisurerite C100 -Top | 204 | 143 | Semicircle handle |
Male slip fitting | combined with bottom makes 2 per set. 421mm overall |
| Magnum 49 | 205 | 143 | 53mm hole | 53mm hole | |
| Waterway 25 Skim | 205 | 152 | Semicircle handle |
49mm SAE thread |
|
| Artesian 50 | 205 | 171 | Semicircle handle |
59mm MPT thread |
|
| Artesian 32 | 205 | 178 | Semicircle handle |
59mm MPT thread |
|
| Waterco Opal 90 | 212 | 255 | 75mm hole | 75mm hole | Pre 2006 OD was 262 |
| MAGNUM 45 | 215 | 143 | Closed | 49mm SAE thread |
|
| Master Spas 35 | 216 | 127 | Semicircle handle |
SAE internal thread |
Normally in Microban |
| Polyline C13 | 218 | 115 | 50mm hole | 50mm hole | |
| Pentair Predator/Clean & Clear 50 | 219 | 255 | 152mm | 152mm | No center core |
| Signature C100 / Swim Spa - Bottom |
223 | 143 | 54mm hole with raised section |
49mm SAE thread |
combined with top makes 2 per set. 460mm overall |
| Filtermaster C25 | 223 | 185 | 75mm hole | 75mm hole | |
| Signature 25 Skim | 223 | 143 | Open w/lugs | 49mm SAE thread |
To fit with Nature2 stick |
| Spa International External | 223 | 127 | Semicircle handle |
49mm SAE thread |
|
| Signature 50 Skim | 223 | 143 | Semicircle handle |
49mm SAE thread |
|
| Signature C100 / Swim Spa - Top | 223 | 143 | Semicircle handle |
Male slip fitting with lugs |
combined with bottom makes 2 per set. 460mm overall |
| LA Spa 50 | 225 | 152 | Semicircle handle |
46mm MPT thread |
|
| Spaquip SQ50 | 227 | 143 | 53mm hole | 53mm hole | 2 x SQ50 combines to make SQ100 Joined with metal clip |
| Master Spas 31 | 227 | 127 | SAE internal thread |
SAE internal thread |
Normally in Microban |
| Hot Springs C33 | 229 | 150 | 50mm hole | 50mm | |
| Waterco Fulflo 90 | 230 | 305 | 78mm hole | 78mm hole | |
| Orbit 25 | 233 | 124 | 55mm hole | 55mm hole | Arcadia |
| Nally Mono 25 | 234 | 173 | Moulded knob handle |
62 ID, 74 OD Male slip fitting |
|
| Rainbow / Waterway 35 | 235 | 125 | 54mm hole | 54mm hole | |
| Master Spas 60 | 235 | 203 | Semicircle handle |
59mm MPT thread |
|
| Master Spas Twilight 40 | 235 | 152 | Semicircle handle |
59mm SAE thread |
|
| Snug Tub | 235 | 94 | Semicircle handle |
Male slip fitting | |
| Pampa 25 | 240 | 155 | 44mm hole | 50mm hole | |
| MAGNUM 35 | 240 | 135 | 54mm hole | 54mm hole | |
| Freeflow 50 | 240 | 135 | Semicircle handle |
46mm MPT thread |
Original has string handle |
| MAGNUM 47 | 241 | 190 | 67mm hole | 67mm hole | |
| MAGNUM 10" Jumbo Pleated | 243 | 113 | 25mm hole | 25mm hole | 1,5,20 and 50 micron |
| Para / Universal 6sq ft | 244 | 70 | 27mm hole | 27mm hole | |
| FPI C25 | 244 | 185 | 75mm hole | 75mm hole | |
| Waterco Trimline C25 | 244 | 185 | 77mm hole | 77mm hole | |
| Harmsco BF55 | 244 | 195 | 89mm FTC Thread |
67mm hole w/ lipseal |
Height is to top of thread |
| MAGNUM 10" Standard Pleated | 247 | 70 | 27mm hole | 27mm hole | 1,5,20 and 50 micron |
| Top Load 25 | 247 | 118 | Moulded cone handle |
46mm MPT thread |
|
| Coleman Spas Top Load 40 | 247 | 178 | Semicircle handle |
46mm MPT thread |
|
| Vita Spas Top Load 40 | 247 | 178 | Semicircle handle |
46mm MPT thread |
|
| Vita Spas 40 | 247 | 178 | Semicircle handle |
48mm hole | |
| Aqua Spa 25 | 247 | 152 | Semicircle handle |
48mm hole with slots |
|
| Four Seasons 25 | 247 | 152 | Semicircle handle |
48mm hole with slots |
|
| Gatsby Spas 25 | 248 | 177 | Moulded cone handle |
48mm hole | |
| Aqua Spa 20 | 248 | 117 | Moulded cone handle |
48mm hole with slots |
|
| Coleman Spas 402 | 248 | 178 | Semicircle handle |
59mm MPT thread |
|
| CMP50/Rainbow/Waterway 45 | 249 | 135 | 54mm hole | 54mm hole | |
| Spa International Slip Fit (old style) | 249 | 127 | Semicircle handle |
54mm hole | |
| Intex B | 250 | 147 | 48mm hole | 48mm hole | |
| Freeflow Spas 45 Legend | 250 | 135 | 54mm hole | 46mm MPT thread |
|
| Rainbow 37 | 250 | 125 | 54mm hole | 54mm hole | |
| Santanna 25 | 250 | 125 | 54mm hole | 54mm hole | |
| Waterway 37 | 250 | 125 | 54mm hole | 54mm hole | |
| American Products 25 | 250 | 177 | 76mm hole | 76mm hole | |
| Hayward Star-Clear C250 | 250 | 177 | 76mm hole | 76mm hole | |
| Onga C25 | 250 | 177 | 76mm hole | 76mm hole | |
| Baker Hydro HM25 | 250 | 173 | Moulded knob handle |
Moulded cone | |
| Diamond Back Spas 35 | 250 | 152 | Semicircle handle |
46mm MPT thread |
|
| Magnum 20 | 252 | 125 | 55mm hole | 55mm hole | |
| Polyspun Pre-filter 5 micron | 253 | 65 | Closed | Female hose thread |
|
| AAIM / Spa International Internal | 254 | 127 | Semicircle handle |
45mm female thread |
|
| Hot Springs C31 | 260 | 130 | 49mm hole | 49mm hole | |
| Hot Springs C30 | 260 | 150 | 50mm hole | 50mm hole | |
| Astral Terra CE 2505 | 260 | 228 | 95mm hole | 95mm hole | |
| Master Spas 49 | 260 | 127 | Semicircle handle |
SAE internal thread |
|
| Spa Systems C50 | 263 | 152 | 50mm hole | 50mm hole | |
| Lifestyle 30 | 263 | 125 | 54mm hole | 54mm hole | |
| Nemco 30 | 263 | 125 | 54mm hole | 54mm hole | |
| Jacuzzi Whirlpool Bath 26 | 264 | 144 | Closed with string loop |
54mm hole | String loop inserted on side of cartridge. 100 pleats |
| Jacuzzi Whirlpool Bath 50 | 264 | 144 | Closed with string loop |
54mm hole | String loop inserted on side of cartridge |
| Poolrite CL30 | 266 | 185 | 74 OD Male slip fitting |
75mm hole | |
| Poolrite CL50LP | 266 | 185 | 74 OD Male slip fitting |
75mm hole | |
| Dimension One C75 TY | 267 | 182 | 6mm hole with Y stands |
50mm hole with twist lock |
|
| Hotsprings C65 | 267 | 215 | 76mm hole | 76mm hole | |
| Dimension One 52 49mm | 267 | 178 | Semicircle handle |
49mm SAE thread |
|
| Dimension One 52 59mm | 267 | 178 | Semicircle handle |
59mm MPT thread |
|
| Sunflow SF3000 | 272 | 145 | Closed | 38mm hole | |
| Sunflow SF5000 | 272 | 145 | Closed | 38mm hole | |
| Hayward 400RE Skim Filter | 273 | 216 | Semicircle handle |
103mm hole | |
| Del Sol Spas 40 | 273 | 132 | Semicircle handle |
59mm MPT moulded thread |
Original may be 140mm diameter |
| Spaquip Series 3000 CF750 | 274 | 230 | 102mm hole | 102mm hole | |
| Caldera 50 (Old style) | 274 | 178 | Semicircle handle |
51mm OD slip fitting |
|
| Caldera 50 | 274 | 178 | Semicircle handle |
67mm hole | |
| Davey Series 3000 CF500 | 275 | 208 | 102mm hole | 102mm hole | |
| Davey Series 3000 CF750 | 275 | 230 | 102mm hole | 102mm hole | |
| Spaquip Series 3000 CF500 | 280 | 208 | 102mm hole | 102mm hole | |
| Paradise C50 | 280 | 253 | 140mm hole | 140mm hole | |
| Pentair Purex 40 | 282 | 177 | 76mm hole | 76mm hole | 3 per set |
| Waterway 40 | 286 | 125 | 54mm hole | 54mm hole | |
| Hurlcon ZX50 | 288 | 230 | 75mm hole | 75mm hole | |
| Saratoga Spas 27.5 P2 | 289 | 118 | Handle | 40mm SAE thread |
|
| Saratoga Spas 27.5 P4 | 289 | 118 | Handle | 46mm MPT Thread |
|
| Poolrite Water Miser 110 | 293 | 230 | 102mm hole | Male slip fitting | |
| MAGNUM 51 | 293 | 185 | 77mm hole | 77mm hole | |
| Poolrite Watermiser 200 Lower | 295 | 295 | 100mm hole | Cone with 60mm hole |
|
| Nemco 25 | 295 | 300 | Moulded knob handle |
Moulded cone adaptor |
|
| Discovery Spas 60 | 295 | 203 | Semicircle handle |
59mm MPT thread |
|
| Hayward 200 | 297 | 115 | 54mm hole | 54mm hole | |
| Hayward 225 | 297 | 115 | 54mm hole | 54mm hole | |
| Aquaswim C50 Compact | 300 | 157 | 50mm hole | 50mm hole | |
| Coleman Spas 50 new | 300 | 178 | 54mm hole | 46mm hole with slip fitting |
|
| Teledyne 50 | 300 | 144 | 54mm hole | 54mm hole | |
| American Products Quantum 44 | 300 | 178 | 75mm hole | 75mm hole | 4 cartridges required to make 175sq ft |
| Jacuzzi Whirlpool Bath 25 | 301 | 144 | 54mm hole | 54mm hole | |
| Top Load 30 | 301 | 118 | Moulded cone handle |
46mm MPT thread |
|
| Marquis Spas 25 | 302 | 132 | 27mm hole | 41mm hole | |
| Premier Springwater 22 | 302 | 132 | 27mm hole | 41mm hole | Old Type |
| Santanna 30 | 302 | 125 | 54mm hole | 54mm hole | |
| Sonfarrel 32 | 302 | 125 | 54mm hole | 54mm hole | Also Martec & Advantage Mfg |
| Hot Springs C45 | 302 | 162 | 76mm hole | 76mm hole | |
| Marquis Spas 34 | 302 | 132 | Closed | 41mm hole | Old Style |
| Advanced Spa 22 | 302 | 132 | Closed with string loop |
49mm hole | |
| Intex D Large | 304 | 147 | 48mm hole | 48mm hole | Note: There are two types of Intex D cartridges, please verify |
| Dimension One 25 | 304 | 118 | Semicircle handle |
40mm SAE thread |
|
| Dakota Spas 45 | 311 | 125 | 54mm hole | 54mm hole | |
| Master Spas Top Load 45 | 314 | 152 | Semicircle handle |
46mm MPT thread |
|
| Cal Spas 50 | 317 | 132 | Semicircle handle |
59mm MPT thread |
Same as Marquis Spas 50 |
| Marquis Spas 35 | 317 | 132 | Semicircle handle |
59mm MPT thread |
|
| Marquis Spas 50 | 317 | 132 | Semicircle handle |
59mm MPT thread |
|
| Pride Pumps DPP50 | 318 | 127 | 36mm OD Male slip fitting |
48mm OD Male slip fitting |
|
| Diamante 85 | 324 | 203 | Semicircle handle |
59mm MPT thread |
|
| Coleman Spas 75 | 330 | 200 | 54mm hole | 46mm hole with slip fitting |
|
| Waterway Top Load 50 | 334 | 125 | 54mm hole | 54mm hole | |
| Waterco Top Load CC25 | 334 | 129 | 54mm hole | 54mm hole | |
| Waterco Top Load 50 | 334 | 129 | 54mm hole | 54mm hole | |
| Fox Wal-Pak 80 | 335 | 203 | Semicircle handle |
78mm hole | |
| Rainbow RDC25 | 338 | 125 | 54mm hole | 54mm hole | |
| Rainbow RDC254 | 338 | 125 | 54mm hole | 54mm hole | |
| Rainbow RDC50 | 338 | 125 | 54mm hole | 54mm hole | |
| Deluxe Spa 50 | 338 | 124 | 55mm hole | 55mm hole | Fits Happy Kiwi Spas |
| RD disposable | 338 | 123 | 56mm hole | 56mm hole | |
| Jacuzzi CFR 15 | 338 | 127 | 60mm hole | 60mm hole | In-Line |
| Jacuzzi CFR 25 | 338 | 127 | 60mm hole | 60mm hole | In-Line |
| Jacuzzi CFR 37 | 338 | 127 | 60mm hole | 60mm hole | In-Line |
| Rainbow Leaf Trap 25 | 338 | 125 | Closed | 54mm hole | |
| O2/Vortex/Rising Dragon/Arctic Spas 50 |
339 | 127 | Semicircle handle |
SAE Internal Thread |
Replacement for Purezone polyspun cartridge |
| LA Spa 51 / Advanced Spa | 340 | 152 | Semicircle handle |
46mm MPT thread |
|
| Jacuzzi Premium 45 | 343 | 152 | Semicircle handle |
59mm SAE thread |
J460 Series |
| Fountain Valley Spas 45 | 350 | 175 | 51mm hole | 51mm hole | |
| Davey Mytilus 230 | 354 | 205 | 75mm hole | 75mm hole | |
| Pac-Fab / Wet Institute 60 | 355 | 200 | 78mm hole | 78mm hole | |
| Poolrite Watermiser 200 Upper | 355 | 295 | Closed castle top |
Cone with 60mm hole |
|
| Sundance C80 | 355 | 214 | Closed with 59mm SAE thread |
63mm beveled hole |
For use with Microclean filter |
| Marquis 50 (Old Style) | 357 | 132 | closed | 41mm hole | |
| Sunrise 50 | 357 | 178 | Semicircle handle |
46mm MPT thread |
|
| Emaux CF50 | 358 | 185 | 77mm hole | 77mm hole | |
| Pentair Clean & Clear Plus 240 | 359 | 177 | 76mm hole | 76mm hole | 4 required |
| Hayward Easy Clear CX410RE | 360 | 177 | 76mm hole | 76mm hole | |
| Hayward Swimclear CX470XRE | 360 | 177 | 76mm hole | 76mm hole | 4 required |
| Hayward Swimclear CX480XRE | 360 | 177 | 76mm hole | 76mm hole | 4 required |
| Hayward CX850RE | 360 | 236 | 76mm hole | 76mm hole | |
| Coleman Spas 50 old | 364 | 178 | Semicircle handle |
59mm MPT thread |
|
| Dimension One Spas 75 | 364 | 178 | Semicircle handle |
59mm MPT thread |
|
| Sonfarrel 25 | 367 | 129 | 54mm hole | 54mm hole | |
| Poolrite Water Miser 130 | 369 | 230 | Castle top | Male slip fitting | |
| Advantage Mfg 75 | 370 | 185 | 75mm hole | 75mm hole | |
| Aquaswim CF50 | 370 | 185 | 75mm hole | 75mm hole | |
| Davey Lock Ring C50 | 370 | 185 | 75mm hole | 75mm hole | |
| Hurlcon QX50 | 370 | 185 | 75mm hole | 75mm hole | |
| Monarch Ecopure C50 | 370 | 185 | 75mm hole | 75mm hole | |
| Monarch Ecopure C75 | 370 | 185 | 75mm hole | 75mm hole | |
| Onga PCF50 | 370 | 185 | 75mm hole | 75mm hole | |
| Onga PCF60 | 370 | 185 | 75mm hole | 75mm hole | |
| Poolquip P50 | 370 | 185 | 75mm hole | 75mm hole | |
| Poolrite Enduro EC50 | 370 | 185 | 75mm hole | 75mm hole | |
| Poolrite Enduro EC75 | 370 | 185 | 75mm hole | 75mm hole | |
| Quiptron C464 | 370 | 185 | 75mm hole | 75mm hole | |
| Spaquip Series 2000 C50 | 370 | 185 | 75mm hole | 75mm hole | |
| e Spaquip Series 2000 CF75 | 370 | 185 | 75mm hole | 75mm hole | |
| Spaquip C500 | 370 | 185 | 75mm hole | 75mm hole | |
| Jandy CT50 | 370 | 185 | 77mm hole | 77mm hole | |
| Stroud SHD CF50 | 370 | 185 | 77mm hole | 77mm hole | |
| Stroud SHD CF75 | 370 | 185 | 77mm hole | 77mm hole | |
| Waterco Trimline CC50 | 370 | 185 | 77mm hole | 77mm hole | |
| Para HC50 | 370 | 205 | 97mm hole | 97mm hole | |
| Davey Series 3000 CF1000 | 372 | 230 | 102mm hole | 102mm hole | |
| Spaquip Series 3000 CF1000 | 372 | 230 | 102mm hole | 102mm hole | |
| Advanced Spa 75 | 374 | 152 | Semicircle handle |
46mm MPT thread |
|
| Coleman /Vita Spas 50 | 374 | 178 | Semicircle handle |
46mm MPT thread |
|
| Vita Spas 501 | 374 | 178 | Semicircle handle |
48mm hole | |
| Four Seasons 45 | 374 | 152 | Semicircle handle |
48mm hole with slot |
|
| Caldera 75 (Old style) | 374 | 178 | Semicircle handle |
51mm OD slip fitting |
|
| Caldera 75 | 374 | 178 | Semicircle handle |
67mm hole | |
| Marlin Spas 27 | 375 | 132 | 27mm hole | 41mm hole | |
| Santanna 45 | 375 | 125 | 54mm hole | 54mm hole | |
| La Spa 36 | 375 | 118 | Handle | 46mm MPT thread |
|
| Rec Warehouse 50 | 376 | 190 | 75mm hole | 75mm hole | 134 pleats |
| Rec Warehouse 65 | 376 | 190 | 75mm hole | 75mm hole | 165 pleats |
| Sonfarrel 28 | 377 | 125 | 54mm hole | 54mm hole | 106 pleats |
| Sonfarrel 45 | 377 | 125 | 54mm hole | 54mm hole | (Fits Leisurerite) |
| Waterco Multi Cyclone C75 | 380 | 160 | 53mm hole | 53mm hole | |
| Waterway Dynaflo 75 | 380 | 135 | 54mm hole | 54mm hole | |
| Sundance 64 | 380 | 190 | Castle top | 67mm hole | Measured to top of castle |
| Sundance C65 | 380 | 190 | Castle top | 67mm hole | Measured to top of castle |
| Astral Terra CE 2507 | 381 | 228 | 95mm hole | 95mm hole | |
| Dimension One C36 | 385 | 118 | Handle | 40mm SAE thread |
|
| Jacuzzi Premium 60 | 385 | 170 | Semicircle handle |
59mm SAE thread |
|
| Rec Warehouse 1008 | 386 | 216 | 55mm hole | 79mm hole | |
| Harmsco BF75 | 386 | 195 | 89mm FTC Thread |
67mm hole w/ lipseal |
Height is to top of thread |
| Jacuzzi Premium 961 | 394 | 171 | 46mm recessed hole with slots* |
59mm SAE thread |
* For use with plastic cap |
| Jacuzzi 95 | 394 | 203 | Semicircle handle |
59mm MPT thread |
|
| Top Load 35 | 406 | 118 | Moulded cone handle |
46mm MPT thread |