Product Overview

The Magic Plastics CR2 2 in. Corrosion Resistant Check Valve (0801-20H2) is a backflow-prevention check valve built for pool and spa plumbing where chemical exposure is a concern. It uses a proprietary Hastelloy spring, a glass-filled Noryl injection-molded shaft, and a 100% silicone gasket that never requires lubrication. A clear sight glass and removable, serviceable lid make inspection and service simple.

Ideal For

Preventing backflow in pool and spa plumbing

Installations downstream of chemical feeders or chlorinators

Protecting heaters and other equipment from chemical backflow

2 in. pool plumbing lines

Key Features

Proprietary Hastelloy spring: corrosion-resistant spring for chemical-exposed lines.

Glass-filled Noryl shaft: injection-molded for strength.

100% silicone gasket: never requires lubrication.

Clear sight glass: view gate operation without disassembly.

Removable/serviceable lid: easy inspection and service.

1/2 lb spring-loaded gate: can be installed in any orientation.

Specifications

Warranty & Compatibility

Compatibility Notes

This valve is for 2 in. pool and spa plumbing. Confirm your pipe size and connection style before ordering. A lid and gate replacement kit is sold separately for service.

Installation Notes

Turn off the pump and relieve system pressure before cutting into plumbing. Install the valve with the flow arrow pointing in the direction of water flow. The spring-loaded gate allows installation in any orientation. Follow local plumbing code and the manufacturer's instructions, and check for leaks at startup.

Customer-Facing Q&A

Q: What is the part number and UPC?
A: The Magic Plastics part number is 0801-20H2 and the UPC is 758614150450.

Q: What size is this check valve?
A: 2 in.

Q: Why is it corrosion resistant?
A: It uses a Hastelloy spring, a glass-filled Noryl shaft, and a CPVC body, which are built for chemical-exposed plumbing.

Q: Does the gasket need lubrication?
A: No. The 100% silicone gasket never requires lubrication.

Q: Can it be installed vertically?
A: Yes. The 1/2 lb spring-loaded gate allows installation in any orientation.