Ohmeda Wall-type Gas Outlets feature recessed, color-coded outlets that represent the most technically advanced means of providing medical gas connections to the central piping systems. Features UL listed Conforms to NFPA 99 and CGA standards Easy maintenance without removing the faceplate Gas-specific outlet body with a modular design All outlets are 100% tested for flow and leaks The seal between the front assembly and back body is a double O-ring that doesnt deform and leak when weight is added to the outlet front. O-rings may be serviced without removing the secondary check or shutting off the supply of gas. Outlets incorporate protective vinyl labels that are durable and scratch resistant Available in rough-in and finishing assembly