Prevost Industrial Interchange Plugs These Prevost industrial interchange plugs are the male half of the most common quick-connect standard in North American shop air. They push into any industrial interchange coupler, so one plug style keeps your hoses, tools, and drops interchangeable across the whole facility. Choose from three body sizes, 1/4, 3/8 and 1/2 inch, each available with male or female NPT threads in several thread sizes, for sixteen configurations in total. Body size sets the air passage and therefore the flow, so match the body to your hose and tool demand rather than to the thread. Prevost builds these from plated steel for durability in daily industrial service. Please note: plugs are sold in packs of 10 and must be ordered in multiples of 10. Pair these with matching couplers and fittings from our air pipe and fittings range. Available Variants & SKUsAll variants and part numbers for this product are listed below for easy reference and ordering. SKU Description IRP 066251 1/4 IN / 1/4 IN NPT / Male IRP 066252 1/4 IN / 3/8 IN NPT / Male IRP 066253 1/4 IN / 1/2 IN NPT / Male IRP 066254 1/4 IN / 3/4 IN NPT / Male IRP 066201 1/4 IN / 1/4 IN NPT / Female IRP 066202 1/4 IN / 3/8 IN NPT / Female IRP 066203 1/4 IN / 1/2 IN NPT / Female IRP 066204 1/4 IN / 3/4 IN NPT / Female IRP 086251 3/8 IN / 1/4 IN NPT / Male IRP 086252 3/8 IN / 3/8 IN NPT / Male IRP 086253 3/8 IN / 1/2 IN NPT / Male IRP 086254 3/8 IN / 3/4 IN NPT / Male IRP 086201 3/8 IN / 1/4 IN NPT / Female IRP 086202 3/8 IN / 3/8 IN NPT / Female IRP 086203 3/8 IN / 1/2 IN NPT / Female IRP 086204 3/8 IN / 3/4 IN NPT / Female IRP 116252 1/2 IN / 3/8 IN NPT / Male IRP 116253 1/2 IN / 1/2 IN NPT / Male IRP 116254 1/2 IN / 3/4 IN NPT / Male IRP 116202 1/2 IN / 3/8 IN NPT / Female IRP 116203 1/2 IN / 1/2 IN NPT / Female IRP 116204 1/2 IN / 3/4 IN NPT / Female