Pentair Clamp Knob for Challenger Pumps | 175025Z DRG3DE065 replacement filter cartridge engineered for

replacement filter cartridge engineered for Waterway Plastics top-load in-line spa filters

The tank O-ring

light and dark blue options

Pentair Part Number 81111800 Hole Pattern Large

Pentair Clamp Knob for Challenger Pumps | 175025Z DRG3DE065 replacement filter cartridge engineered forThe Pentair Clamp Knob (175025Z) is the OEM replacement knob for the strainer housing clamp assembly on the Challenger High Flow inground pump series. This knob is designed specifically for clamps fitted with a captured T bolt. It is not interchangeable with standard clamp knob configurations. What It Does The clamp knob secures the strainer housing clamp on the Challenger High Flow pump, allowing the strainer pot lid to be tightened and released