21191 Loc-Line In-Line Check Valve for 1/4″ ID System, pack of 2

Product details

21191 Loc-Line In-Line Check Valve for 1/4" ID System, pack of 2 is a Loc-Line in-line check valve designed for aquarium plumbing using a 1/4" ID tubing system. Installed in-line on compatible tubing runs, it helps allow water to flow in one direction while reducing the chance of reverse flow when pressure changes (for example, during pump shutdown). This makes it a practical add-on for building more controlled, organized return lines, dosing setups, or any circulation run where backflow prevention is helpful.

Features:

• In-line check valve for a 1/4" ID Loc-Line system plumbing line
• Helps reduce backflow by allowing water movement primarily in one direction
• Designed to be inserted directly into the tubing run rather than replacing the pump or manifold
• Pack of 2 valve units for use on multiple lines or as a spare
• Useful for improving stability of plumbing during pump on/off cycles
• Works as part of a modular Loc-Line-style tubing and fitting layout

Specifications:

• SKU: 21191
• Brand: Loc-Line
• Product type: In-line check valve
• Compatible system size: 1/4" ID
• Package quantity: 2
• Color/finish: Not specified
• Valve orientation/connection type: Not specified
• Pressure rating / flow rate: Not specified