Pentair O-Ring | R172240Z Square If the pump is leaking

If the pump is leaking between the motor and wet end

it's installed in areas of the pool system exposed to sediment and wear

The R0555100 fits into standard pool setups

Waterway's commitment to quality ensures that essentials like the insider coupling hold up through seasons of operation

Pentair O-Ring | R172240Z Square If the pump is leakingWhat This Part Is Used For Pentair R172240 O Ring is a replacement sealing O ring used in compatible Pentair pool equipment. It creates a watertight seal between mating components. Why This Part Matters A worn or flattened O ring can cause leaks or suction air intrusion. Replacing it restores proper sealing and maintains system pressure. Good O ring condition prevents recurring service calls related to minor leaks. Key Features and Specifications