An assortment of 250 & 251-type air hose couplers from The Hillman Group. Air hose couplers are designed for use with air pressure hoses and/or tanks to facilitate high flow rates in pneumatic-powered applications. Parts included in this assortment come in 1/4" wide male & female thread variants. Full assortment also includes couplers made to fit 1/4" & 3/8" diameter hoses. Full assortments of #56295 contain eight (8) refills comprised of Hillman item numbers #394134 - #394136 and #394139 - #394143.