Nitrous Express Distribution Blocks 15017 NX Showerhead distribution blocks outflow any other distribution blocks on the market. (1/8-inch NPT fittings on all ports) 1 In 6 Out Nitrous/Fuel Distribution Block Showerhead Nitrous Distributor Block; 1 In 6 Out; 1 x 1/8 in. NPT Inlet Port/6 x 1/8 in. NPT Outlet Port; 1 In 6 Out Nitrous/F
