Pentair Union Valve Nut – Black 51013011 Replacement Fitting for Pool & Spa Plumbing

Genuine Pentair Union Nut for Pool and Spa Valve Connections

Ensure a tight, leak-free connection with the Pentair Union Valve Nut – Black 51013011, an OEM replacement fitting for use with Pentair pool and spa valve assemblies. This durable union nut secures plumbing unions at filter valves, heater manifolds, or pump fittings—helping maintain water-tight integrity in high-pressure systems.

Ideal for pool professionals and DIY repairs, this Pentair 51013011 union nut features high-strength plastic construction engineered to resist cracking, UV damage, and pool chemical exposure. Whether you're replacing a worn or broken nut or completing an equipment installation, this part provides a secure, long-lasting connection.

Compatible with various Pentair valve models and plumbing configurations.

Key Features:

• OEM Pentair part #: 51013011

• Black union nut for Pentair pool and spa valve connections

• Maintains strong, sealed union joints in plumbing systems

• Made from durable, chemical-resistant thermoplastic

• Ideal for filters, pumps, and heater manifold installations

• Prevents leaks and flow loss due to loose or cracked fittings

• Easy installation with standard hand tools

Restore secure plumbing connections and prevent leaks with the Pentair 51013011 Union Valve Nut, the go-to replacement part for Pentair pool systems.