Darlly 40260 FC-0131 4CH-24 PTL20HS / PSG40W/PAD Filter Cartridge dialvalves The 1-3/4 inch hole size

The 1-3/4 inch hole size and 2-1/2 inch face help define the intended fit

When the upper closure of a filter begins to fail

If the movement has weakened

That keeps the repair focused while improving internal consistency

Hydro-Quip 48 inch circulation pump cord

Darlly 40260 FC-0131 4CH-24 PTL20HS / PSG40W/PAD Filter Cartridge dialvalves The 1-3/4 inch hole sizeA filter cartridge provides the working media that captures debris during normal circulation, and this Darlly cartridge is designed for compatible applications referencing FC 0131, 4CH 24, PTL20HS, and PSG40W PAD. When an older cartridge begins to clog or lose effectiveness, the water system can feel less efficient than it should. The expanded cross reference set gives this cartridge practical value because accurate filter replacement depends on