CMP Generic Raypak Heater Half Union With O-Ring [2" Slip] [Qty 2] (21063-801-000)

Fittings & Valves: Unions
Custom Molded Products (CMP)
21063-801-000
89-605-2000
COMPARE AT $76.99
OUR PRICE $56.99
STOCK STATUS IN STOCK Ships Usually the Same/Next Business Day
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The CMP generic heater half union set is designed for compatible Raypak style heater applications where 2 inch slip replacement unions are needed. A half union with O-ring is useful because it helps create a serviceable heater connection while supporting dependable sealing at the plumbing interface.

This replacement is especially useful when the original unions are cracked, leaking, damaged, or missing their sealing components. The two-piece set makes it practical for servicing both sides of a compatible heater connection.

The 21063-801-000 is a practical service part when a compatible heater needs half unions to restore dependable plumbing connection support.

  • CMP generic heater half union set
  • Designed for compatible Raypak style heater applications
  • 2 inch slip configuration with O-rings
  • Set of 2
  • Supports cleaner and more dependable heater plumbing service
Custom Molded Products (CMP) – Pool, Spa & Bath Components
Who is Custom Molded Products (CMP)?

Custom Molded Products (CMP) is a leading manufacturer of high-quality pool, spa, and bath components engineered for performance, durability, and easy installation. Known for innovation and reliability, CMP produces a wide range of essential aquatic products including jets, drains, skimmers, fittings, valves, LED lighting, sanitization systems, and automation solutions. Professionals and homeowners trust CMP for replacement parts, upgrades, and new installations across residential and commercial pool and spa environments.

What products does CMP specialize in?

CMP offers components for filtration, plumbing, water management, and pool and spa lighting systems. Popular categories include spa jets, replacement fittings, suction and drain covers, ozone and UV sanitization systems, spa manifolds, water features, and LED lighting technology. CMP also delivers specialty products like LED bubblers, deck jets, laminar systems, and energy-efficient equipment that enhances performance and aesthetics.

Why choose CMP parts for your pool or spa?

CMP focuses on long-term durability, precise engineering, and compatibility across major pool and spa systems. Their components are designed to meet strict industry standards, ensuring dependable performance, easy maintenance, and reliable replacement solutions. CMP is a preferred choice among pool builders, repair technicians, and homeowners seeking quality OEM-style replacement parts.

How do you identify and choose the correct CMP part?

To select the right part, it’s important to match specifications such as size, connection type, model compatibility, and system requirements. Reviewing product manuals, part diagrams, and existing component labels can help ensure accuracy. Choosing the correct part helps maintain system efficiency, prevents leaks or performance issues, and extends the life of your pool or spa equipment.

Need help finding the right CMP part?

At Bath & Spa Parts Online, we carry a wide selection of CMP pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.

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