Waterway Plastics 711-6020 Union Heater Gasket - 2.5 inch

What This Part Is Used For
The Waterway Plastics 711-6020 union heater gasket is used to seal 2.5 inch heater unions in pool and spa circulation systems. It installs inside the union connection between the heater and plumbing. This gasket prevents leaks at the heater inlet or outlet under operating pressure and temperature. It is commonly used during heater installation or service.

Why This Part Matters
Heater unions are exposed to heat, pressure, and vibration. A worn or flattened gasket can cause slow leaks that damage surrounding equipment. Using the correct heater gasket ensures proper compression and alignment within the union. OEM gaskets help maintain a secure seal without over-tightening.

Key Features and Specifications

• Manufacturer part number 711-6020
• Heater union gasket
• 2.5 inch union size
• Used in pool and spa heater connections
• Installs inside union fitting
• Seals heater inlet and outlet connections
• OEM Waterway Plastics component

Installation and Fitment Guidance
This gasket is placed inside the union before tightening the union nut. Installers verify the gasket is seated flat and free of debris. Excessive force is avoided to prevent gasket deformation. Confirm by manufacturer part number before ordering.

About the Waterway Plastics Brand
Waterway Plastics supplies sealing components for circulation and heating systems. Their union gaskets are designed for consistent fit across compatible assemblies. Service professionals rely on Waterway for reliable heater connections. The brand emphasizes OEM accuracy.

Common Service Context
This gasket is commonly replaced during heater removal or winterization. Technicians encounter it when addressing heater-side leaks. It is often replaced as a routine part of heater service.