gate valve valves | Plastic One-Way Flow | 3mm to 12mm Pagoda Fitting

This plastic check valve has barbed ends for a tight fit on your fluid or air lines. It's a non-return valve, meaning it only lets flow go one way. It acts as a good fluid stopper. These valves are made for simple inline setup. Features and Benefits - Barbed ends (pagoda style) - These barbs grip the inside of a hose. They make a tight seal that resists coming off, even without clamps. - Diaphragm inside - A simple membrane opens for forward flow. It closes against back-pressure. This makes it a reliable non-return valve. - Works with many fluids - The plastic body is good for fuel, gas, liquid, and air in low-pressure systems. - Clear flow arrow - A molded arrow on the valve's side shows the right way to install it. Applications - Air pump protection - A plastic valve for an air pump is key for aquariums. It stops water damage from siphoning back. - Small fuel lines - Put this on a small engine's fuel line. It stops fuel from draining back to the tank. - Water system control - Use it on small pump outputs or drain lines. It makes sure water flows only where you want it.