Air Compressor Check Valve 3-Way Easy Installation Copper/Zinc Alloy Male Threaded Unidirectional Check Valve Pipe Fitting for Air Compressor Thanks to the clear thread, you can install the air compressor non-return valve fast and effortlessly. Preventing the air in the tank from returning to the compressor, this check valve features 3 male threaded connectors for pipe connection, the pressure tank, and the compressor piston pump respectively. Style 1 is made of copper and style 2 is made of zinc alloy, both durable for long-term use. The check valve measures 5cm in length, 3.5cm in width, and 3.5cm in height. The thread connector diameters are 10mm, 14mm, and 16mm respectively. It serves as a suitable replacement for the old or damaged check valve of your air compressor. Item Name: Air Compressor Check Valve Material: Copper, Zinc Alloy Color: Golden Specifications: 1: Copper, 2: Zinc Alloy Features: Easy Installation, Clear Thread, Long Service Life Size Details: Check Valve Size: 5cm x 3.5cm x 3.5cm / 1.97" x 1.38" x 1.38" (Approx.) Thread Diameter: 10mm / 0.39", 14mm / 0.55", 16mm / 0.63" (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement. Package Includes: 1 x Air Compressor Check Valve