10pcs Service/Access Valve 1/4" SAE x 1/4" OD x 2.75" Stem Core & Core Remover. Check the fitment list, part numbers, and images provided to ensure proper compatibility. Specification: New Material: Metal. Thickness: 0.023". Size: 1/4" SAE * 1/4" OD * 2.75". Strong and durable. Commonly used for easy access to systems for vacuum, charging, pressure checks, 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 helps prevent dirt from entering and jamming the valve or contaminating sealing surfaces, which could cause leaks. 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. Compatible with various refrigeration and air conditioning systems for servicing, including recharging with refrigerants such as R12, R22, R134a, and R410A, as well as other common refrigerants. Packing List (as pictured): 10 x valve stem 1/4" SAE x 1/4" O.D. x 2.75" stem, 10 x valve cores, 10 x caps with core remover.