Chemetron wall outlet Oxygen wall outlet- vacuum wall outlet - air wall outlet. An Industry Standard for More Than 40 Years Release mechanism designed for one-handed thrust mounting and fingertip release of secondary equipment. Prohibits the interchange of key components, backbox to adapters. Durable die-cast chrome-plated faceplate. Color coded for error-proof identification. Adjustable modular design backbox with rotating inlet tube for varying wall thickness and easy installation. Conforms with NFPA and CGA standards. Cleaned for oxygen use. UL and CSA listed. NFPA compliant. Available for : Oxygen, Air, Vaccum, Nitrous Oxide and Carbon Dioxide