Pleatco PSR50-4 50 sq ft replacement filter cartridge for Sta-Rite Posi-Flo TX-50 filtersPleatco Sta-Rite Posi-Flo TX-50 Filter Cartridge, 50 sq ft, PSR50-4$7299
Pleatco PSR50-4 50 sq ft replacement filter cartridge for Sta-Rite Posi-Flo TX-50 filters
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Pleatco Sta-Rite Posi-Flo TX-50 Filter Cartridge, 50 sq ft, PSR50-4

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$7299
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Quick overview

  • 50 square feet Fifty square feet of pleated filter area.
  • Sta-Rite Posi-Flo Built as the replacement element for Sta-Rite Posi-Flo cartridge filters.
  • Model list Listed for the 50GPM-TX, 50TX, 50TXR, T-50TX, T-50TXR and II PTM50.
  • Open end caps Open at the ends, with twelve concentric slots.
  • 8-11/16 inch diameter Measures 8-11/16 inches across the outside.
  • Pleatco build Pleatco part number PSR50-4.
Full description and specifications ↓

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Product details

The Pleatco PSR50-4 is a 50 square foot replacement cartridge for Sta-Rite Posi-Flo cartridge filters. It carries the model list 50GPM-TX, 50TX, 50TXR, T-50TX, T-50TXR and II PTM50.

Size and fit

The element measures 8-11/16 inches across the outside and is open at both ends, with twelve concentric slots. Those numbers matter more than the square footage when you are matching a cartridge, because a filter that takes a 50 sq ft element will not accept one built to a different diameter or end cap pattern.

When to change it

A cartridge is a wear item. Rinse and soak it on your normal schedule, and watch for the point where a cleaning no longer brings the pressure back down. Grey pleats that stay grey, thin or torn fabric and loose end caps all say the same thing, which is that the element is finished and a new one will do more for flow than another afternoon with a hose.

Specifications
Brand Pleatco
Manufacturer part number PSR50-4
UPC 690164229852
Filter manufacturer Sta-Rite
Square footage 50
Outside diameter 8-11/16"
End caps Open with 12 concentric slots
Fits Sta-Rite Posi-Flo 50GPM-TX, 50TX, 50TXR, T-50TX, T-50TXR, II PTM50
Shipping weight 6.8 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which filters does this fit?
Sta-Rite Posi-Flo cartridge filters: the 50GPM-TX, 50TX, 50TXR, T-50TX, T-50TXR and the II PTM50.
How big is it?
The outside diameter is 8-11/16 inches, and both ends are open with twelve concentric slots.
How much filter area does it have?
Fifty square feet.
When should a cartridge be replaced rather than cleaned?
Clean it on the normal schedule, but once the pleats stay grey after a soak, the fabric feels thin, or the end caps have pulled loose, cleaning stops buying you anything and it is time for a new element.
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