Quick Connect Component, Male Plug, Brass, Oxygen no checkout Dissipates force on impact by Dissipates force on impact by reducing it to smaller increments and spreading it over a greater area The exclusive smooth crown design contains a technically advanced suspension with eight load bearing points to stabilize and balance the hat or cap during everyday wear and cutting fluids 000 operations indicating a service life of 10 to 12 years of comparable use Non interchangeable oxygen and fuel gas connectors prevent accidental gas mixing Instant closure on reverse flow check valves with total shutoff at only 10 oz of back pressure Brass construction provides long service life Cycle tested over 100