Lock Your 3-Inch Check Valve in Place Securely The Aquascape 3-inch Check Valve Threaded Collar is a replacement or supplemental locking collar that threads onto the outside of a 3-inch (7.6 cm) Aquascape check valve assembly to hold the valve body firmly within the plumbing run. Unlike slip fittings that bond permanently with solvent cement, the threaded collar allows the check valve to be removed for inspection or replacement without cutting the pipe. Service-Friendly Check Valve Security Permanent solvent-bonded check valves cannot be accessed without cutting the line, which adds cost every service cycle. The threaded collar design creates a watertight joint using a rubber gasket seal while remaining fully removable by hand. This makes annual inspections and check valve swaps a straightforward task rather than a plumbing repair. Specification Value Pipe Size 7.6 cm (3") Connection Type Threaded collar (tool-free removal) Compatible With Aquascape 3" check valve bodies Seal Type Rubber gasket Material PVC thermoplastic How to Use Thread the collar onto the check valve body by hand until snug. Install the valve into the plumbing run, then tighten the collar an additional half-turn. Do not use thread sealant tape on the collar as the gasket provides the seal. To remove for maintenance, simply unthread the collar by hand and slide the valve out of the line. Inspect the gasket annually for compression set or cracking and replace if needed. Ideal for any 3-inch pond plumbing installation where the check valve may need future access, such as professional builds, larger koi ponds, and pondless waterfall systems with long pipe runs.
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