CMP 1.5 Self-Sealing Union (21063-170-000) by Custom Molded Products

Engineered by Custom Molded Products (CMP), the 1.5 CMP Self-Sealing Union is a reliable, quick-connect fitting designed for pool and spa plumbing. It’s the go-to replacement part for CMP systems that demand a secure, leak-resistant connection with straightforward installation.

• Size & Connection: 1.5" connection designed for standard pool and spa plumbing, ensuring compatibility with common CMP fittings and 1.5" piping.
• Self-Sealing Design: built-in sealing mechanism provides a secure, leak-resistant union with minimal maintenance and tool-free assembly where possible.
• Part Number: 21063-170-000, a genuine CMP component that ensures consistent performance within Custom Molded Products’ ecosystem.
• Brand & Compatibility: proudly produced by Custom Molded Products (CMP); optimized for CMP systems and seamless integration with CMP plumbing hardware.
• Installation & Serviceability: designed for quick installation and easy disassembly for inspections, replacements, or seasonal maintenance without specialized tools.
• Durability & Use Case: engineered to withstand the demands of pool and spa environments, including frequent assembly/disassembly during routine upkeep and system servicing.

The CMP 1.5 Self-Sealing Union is ideal for replacing aging or worn unions on heaters, pumps, filters, or circulating lines. By choosing a CMP part, you benefit from precise fit and reliable performance that helps maintain optimal water flow, minimize downtime, and protect your pool or spa investment. For professional installers and DIY enthusiasts alike, this 1.5" CMP union delivers predictable results, clear compatibility, and a straightforward path to a leak-free connection.