1-1/2 Union Fitting for Pool and Spa Plumbing – CMP / Custom Molded Products

Designed for pool professionals and serious DIYers, the 21021-000-000 1-1/2 Union Fitting from Custom Molded Products (CMP) delivers a durable, easy-to-install connection for pool and spa plumbing that withstands demanding chemical environments.

• Size: 1-1/2" union connection compatible with standard pool and spa piping
• Material: Custom molded PVC resin for reliable chemical resistance and long-lasting performance
• Connection Type: Union design enables quick assembly and disassembly without cutting pipes
• Applications: Ideal for pump, heater, filter, valve, and spa equipment plumbing
• Brand: CMP (Custom Molded Products), a trusted name in pool and spa fittings

The CMP 21021-000-000 union fitting is engineered to simplify maintenance and repairs while delivering a secure, leak-resistant connection. Its union feature allows technicians to service components without disturbing the surrounding plumbing, reducing downtime on job sites. Built from durable PVC, it resists the harsh chemicals and temperature swings common in pool and spa environments, helping to extend service life and reassure customers with dependable performance.