Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
OEM Pentair 51013011 Bulkhead Union Nut is designed to secure the valve assembly in Pentair Push-Pull valves, forming a vital seal point in pool and spa systems. This genuine black union nut fits precisely and supports leak-proof operation by maintaining tight system connections under pressure. Its rugged material composition is ideal for harsh pool environments, resisting chemical degradation and ensuring durability. Built to original Pentair design, this part ensures long-term reliability and compatibility with valve replacements or repairs.
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Exact-Fit OEM Nut: Genuine Pentair part made to fit Push-Pull valve assemblies without modification.
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Leak-Tight Connection: Helps ensure the valve seal remains intact under normal system pressure and use.
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Built for Pool Duty: Manufactured from heavy-duty polymer suited for chlorinated water and outdoor exposure.
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Valve-Specific Design: Made to match the size and thread profile of Pentair Push-Pull valves for trouble-free integration.
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Single Component Supplied: Includes one 51013011 union nut for direct replacement in Pentair systems.
- (1) Pentair 51013011 Nut
- Pentair Push Pull Valves

