Bild Expansion Ring Coupling for Double Jacket Hose, Brass Jump to Section Product Options Related Products Product Options Part Number Bowl Size Hose Size Thread Material RD15193 1-15/16" 1-1/2" NPSH Brass RD15193F 1-15/16" 1-1/2" NST (NH) Brass Related Products Bild Expansion Ring Bild Expansion Ring Coupling for Double Jacket Hose, Aluminum Bild Swivel Washer Bild Tail Washer