This is a genuine Pentair 192320 O-Ring, designed as a direct replacement part for compatible Pentair pool and spa filter systems. The item is in new condition and is available with free shipping. A worn or damaged O-Ring can cause leaks and reduce filter efficiency, so replacing it helps maintain a proper seal and optimal performance. This is an ideal purchase for homeowners or maintenance professionals performing routine filter upkeep. It is a specific size and shape for a precise fit; check the listing for full details on compatible filter models to ensure it matches your equipment before ordering. Pentair 192320 O-Ring Bulkhead Replacement Pool and Spa Filter. Color: Black, Condition: New. Listed at 12.95 USD. Pentair 192320 O-Ring Bulkhead Replacement Pool and Spa Filter O-Ring bulkhead replacement Fits Pentair FNS and FNS Plus pool/spa D.E. filter models FNSP 24, FNSP 36, FNSP 48, FNSP 60 Also fits Pentair Nautilus and Nautilus Plus pool D.E. filters models NSP36, NSP48, NSP60, NSP72 Also compatible with Pentair Clean & Clear Plus cartridge filter models CCP240, CCP3201, CCP4201, CCP5201 FNS plus made of 2-137 buna N 70 shore