Magnum Filters produce a full range of spa pool and swimming pool filter cartridges. As well as pleated cartridges for the water purification industry.
Click Here to download 'Filter ID Form'
If you are a spa/pool manufacturer or distributor, we can design and manufacture filter cartridges to your specific requirements. Click here to submit your requirements.
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| CH20 | |
|---|---|
| Description | Softub 20 |
| Diameter(mm) | 118 |
| Length(mm) | 171 |
| Top | Cone Handle |
| Bottom | 46mm MPT (fine) Thread |
| Replaces | |
|---|---|
| Pleatco | PHC25P4 |
| Unicel | 4CH-20 |
| Filbur | FC-0125 |
| OEM | PVT 25 |
| Other | SC715, 40201 |



| ST35 | |
|---|---|
| Description | SOFTUB 35 OLD (SMALL RING) |
| Diameter(mm) | 151 |
| Length(mm) | 191 |
| Top | Closed |
| Bottom | 51mm hole w/ 105mm raised push fit ring |
| Replaces | |
|---|---|
| Pleatco | |
| Unicel | |
| Filbur | |
| OEM | 2005400 |
| Other | SC760, 60304 |



| ST36 | |
|---|---|
| Description | Softub 36 New (large ring) |
| Diameter(mm) | 151 |
| Length(mm) | 191 |
| Top | Closed |
| Bottom | 51mm hole w/ 141mm raised push fit ring |
| Replaces | |
|---|---|
| Pleatco | |
| Unicel | |
| Filbur | |
| OEM | 2004905 |
| Other | SC784, 60305 |



| ST25 | |
|---|---|
| Description | SOFTUB TOP LOAD C25 |
| Diameter(mm) | 152 |
| Length(mm) | 144 |
| Top | Handle |
| Bottom | 46mm MPT (fine) Thread |
| Replaces | |
|---|---|
| Pleatco | |
| Unicel | |
| Filbur | |
| OEM | 90-802 |
| Other | |


| SO45S | |
|---|---|
| Description | Sonfarrel 25 |
| Diameter(mm) | 129 |
| Length(mm) | 367 |
| Top | Open |
| Bottom | Open |
| Replaces | |
|---|---|
| Pleatco | POX25-IN |
| Unicel | C-4308 |
| Filbur | FC-6305 |
| OEM | |
| Other | |