2 PCS Bulkhead Fitting, Solid Brass, 1/2" NPT Female-3/4" NPT Male Water Tank Connector for Rain Barrels, Aquariums, Water Tanks, 2 Rubber Rings Stablizing In fact, All Brass contains Pb more or less. If you mind Pb, please buy other material. Attention: It contains Pb. Rain Barrel GOVALVE Brass - 3/4" GHT Female X 1" Straight Male Thread Water Tank Connector With 2 Rubber Rings For Water Tower Tank Barrels (pack Of 2 Bulkhead Fitting Looking for Brass Bulkhead Female 3/8 in. Pipe x Male 1/2 in. Pipe x 1 in. Body Thread? Purchase it from Imperial Supplies along with 1.5 million other products USAGE: Used in water towers, water inlet/outlet, and self-made water storage barrels, also can be used for various pipes, faucets, hoses, fittings, etc. Please measure and select the appropriate size before purchasing(Actual OD≠Thread Size). BRASS 1/2& NPT Female Bulkead Coupling Bulk Head Pipe Fitting Bulkhead PACKAGE INCLUDES: 2 PCS Bulkhead Fitting,Each brass bulkhead fitting with thread linking and 2 rubber washers can make connection more firmly, no worry about leakage.