10pcs Service/Access Valve 1/4" SAE x 1/4" OD x 2.75" Stem Core & Core Remover Please check the fitment list, part numbers and pictures provided to ensure proper fitment. Specification: New Material: Metal Thickness: 0.023" Size: 1/4" SAE * 1/4" OD * 2.75" Strong and durable. Generally used to provide easy access to systems for vacuum, charging, pressure check up and other applications. Also known as Schrader valve or American Valve. Consists of a valve stem into which a valve core is threaded. The valve core is a poppet valve assisted by a spring. A valve cap is important on a Schrader valve to prevent dirt from entering and jamming the valve or contaminating the sealing surfaces, which could cause a leak. The included cap features a core remover. Insert tubing or body into the corresponding size line or hole and braze into place with the valve core removed during brazing. Can be used on various refrigeration and air conditioning systems to allow servicing, including recharging with refrigerants such as R12, R22, R134, and R304. Packing List (as pictured): 10 x Valve Stem 1/4" SAE x 1/4" O.D. x 2.75" 10 x Valve Cores 10 x Caps with Core Remover