Unicel UHD-SR137 Replacement Filter Cartridge for Sta-Rite Posi-Flo II PTM In stock$13799
Unicel UHD-SR137 Replacement Filter Cartridge for Sta-Rite Posi-Flo II PTM
Quick overview
- Built for the Posi-Flo II PTM Unicel UHD-SR137 is the direct replacement element for the Sta-Rite PTM 135 cartridge filter.
- Full size element 8-11/16 in. outside diameter by 31-1/4 in. long, so it seats on the original manifold.
- Rated area Listed at 135 square feet on the title and product name, and at 137 square feet on the element attributes.
- Sold as one element Order the quantity your filter body holds.
- Restores flow A collapsed or clogged element drives filter pressure up and turnover down.
- Rinse and reuse Cartridges clean with a hose and a soak, and get replaced when the pleats no longer come clean.
Frequently bought together
Unicel UHD-SR137 Replacement Filter Cartridge for Sta-Rite Posi-Flo II PTM
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Product details
The Unicel UHD-SR137 is the replacement cartridge element for the Sta-Rite Posi-Flo II PTM 135 filter. It measures 8-11/16 in. across the outside diameter and 31-1/4 in. long, which is the size the Posi-Flo II PTM body is built around.
A note on the rating
The source data lists this element two ways. The product name and title call it 135 square feet, matching the filter model, while the element attributes and the part number itself point to 137 square feet. It is one cartridge either way, and the dimensions above are what determine fit.
When to replace it
A cartridge is done when filter pressure climbs back up quickly after a cleaning, when the pleats stay grey after a soak, or when the fabric has gone soft and the pleats lean over. At that point the element is passing dirt straight back to the pool, and no amount of hosing will bring it back.
| Brand | Unicel |
|---|---|
| Manufacturer part number | UHD-SR137 |
| UPC | 678285190312 |
| Type | Replacement filter cartridge |
| Outside diameter | 8-11/16" |
| Length | 31-1/4" |
| Square footage | 137 (listed as 135 SQFT in the product name) |
| Filter manufacturer | Sta-Rite |
| Fits | Sta-Rite Posi-Flo II PTM 135 cartridge filter |
| Shipping weight | 8.6 lb |
| Ships | Parcel |
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