Sign In Shopping Cart (0) Quotes (0) Express Ordering All Categories > Hose Fittings and Banding > Hose Barbs and Universal Fittings > Suction Hose Couplings Domestic Barbs > View Items All CategoriesAll Categories Hose Fittings and BandingHose Fittings and Banding Hose Barbs and Universal FittingsHose Barbs and Universal Fittings Suction Hose Couplings Domestic BarbsSuction Hose Couplings Domestic Barbs View Items Suction Hose Couplings Domestic Barbs Email This Page Download PDF Download PDF Printable Page Suction Hose Couplings Domestic Barbs Hose Barbs and Universal Fittings Close Window All Suction Hose Couplings are NPS (National Pipe Sraight) Thread.