Steel braided gauge line - 24" with block fitting SS Teflon Gauge Lines Good gauge response 2500 psi Can be removed and reinstalled over and over again without breaking or leaking Specifications Outside Material Stainless steel braided Inside Material Teflon lined hose Hose Size 4 AN Length 24" End 1 1/8 NPT male End 2 4 AN female Fittings Included Yes Fitting 1 1/8 NPT female union Fitting 2 1/8 NPT male x 4 AN male union