The PSR137-EC is the 137 square foot replacement cartridge for the following: Sta-Rite Posi-Flo II, PTM 135, 35 TX, 35 TXR, open w/12 concentric slots

Replaces: 23701 , 46174 , 4900-209 , AK-8022 , FC-2570 , UHD-SR137 , WC108-70S2X

Features:

• Pleatco Free Flow Cores

Engineered ABS for great flow. Pleatco’s unique Free Flow Cores MAXIMIZE filtration performance of the entire cartridge by delivering optimized water flow to a large surface area of the filtration fabric to capture dirt particles. Pleatco Cores are highly engineered, incredibly strong molded ABS.

• Reinforced Center Cores

Our meticulously engineered center cores allow for increased dirt loading and high pressures while providing ultra-solid protection for the structural integrity of the cartridge.

• Super-bond Bands

Pleatco break-resistant super-bond bands are sealed tight to the filtration fabric with an incredibly strong unique bonding process keeping the pleats sharp and separated for good flow and performance.

• Pleatco Advanced Filtration Fabrics

High fiber count - Engineered for high dirt holding capacity. Pleatco Advanced Filtration Fabrics are a uniformly point bonded media with HIGH FIBER COUNT and reduced pore size distribution offers rapid cleaning and dirt holding capacity, delivering low pressures and high flow rates forexcellent cleaning results.

• Strong End Caps

Pleatco end-caps are break resistant, with ergonomic handles and easily identifiable part numbers