Pentair 274725 Union Check Valve - 2in Slip

What This Part Is Used For
The Pentair 274725 Union Check Valve 2in Slip is used to prevent backflow in compatible 2in plumbing systems. It allows water to flow in one direction while blocking reverse flow.

Why This Part Matters
Backflow can cause system contamination and equipment damage. A faulty check valve may allow water to drain backward into heaters or chlorinators. Replacing worn valves protects circulation and chemical systems.

Key Features and Specifications

• Pentair manufacturer part number: 274725
• Union check valve
• 2in slip connection
• Prevents backflow
• For compatible Pentair plumbing systems

Installation and Fitment Guidance
Install in correct flow direction as marked on valve body. Ensure proper solvent welding on slip connections. Confirm by manufacturer part number before ordering.

About the Pentair Brand
Pentair manufactures plumbing control valves used in pool and spa equipment pads. Their check valves help maintain proper system flow direction. Pentair components are widely specified in professional installations.

Common Service Context
Check valves are commonly replaced when backflow causes heater corrosion or chlorinator damage. They are often serviced during equipment upgrades.