Unicel UHD-SR137 Filter Cartridge – 137 sq ft Media
The Unicel UHD-SR137 is a high-capacity pleated cartridge filter element rated at approx. 137 square feet of media surface. With an outer diameter of about 8⅝″ and a length of approximately 31¼″, it is designed to fit compatible in-ground pool filter systems requiring this size.
Key Features
- Approx. 137 sq ft of filtration media for extended run-time and reduced cleaning frequency.
- Dimensions: ~8⅝″ (8.6875″) outside diameter × ~31¼″ (31.25″) length.
- Open end-caps both ends for top or bottom manifold fit (verify specifics for your system).
- Heavy-duty polyester pleated construction for durability and high flow performance.
Technical Specifications
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Part Number: UHD-SR137
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Media Area: ~137 sq ft
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Approx. Dimensions: ~8⅝″ OD × ~31¼″ length
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End Cap Style: Open both ends (~4⅛″ ID each) (confirm exact ID with your filter manifold)
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Application: Replacement cartridge for filters originally using this size—verify filter model compatibility.
Installation & Use Notes
Prior to installation, shut off the pool pump and relieve all system pressure. Open the filter tank and remove the old cartridge element. Clean the tank interior of debris and inspect the manifold or base plate. Insert the new UHD-SR137 cartridge, making sure it seats evenly and aligns with the manifold ports. Replace the lid, re-pressurize the system, and monitor the pressure gauge to confirm normal operation.
Maintenance Tips
- Rinse the cartridge periodically when differential pressure rises above your normal operating range.
- Replace the cartridge when media becomes damaged, pleats collapse, or cleaning no longer restores proper flow and pressure.
- Keep a replacement cartridge handy in your inventory to minimize downtime during service calls.
Why Choose This Cartridge?
For pool service professionals, supply stores and proactive homeowners, the UHD-SR137 offers a reliable, direct-fit replacement option with high media area—and helps maintain clearer water, better flow and less frequent maintenance.
