2 Pieces PVC Bulkhead Fitting for Rain Barrels, Aquariums, Water Tanks (3/4 Inch | eBay
Amazon.com: PVC Bulkhead Fitting Double Threaded Bulkhead Water Tank Connector for Rain Barrels, Aquariums, Water Tanks, Tubs, Pools, Spigot, Black, 3/4 Inch Male 1/2 Inch Female (4 Pieces) : Industrial & Scientific
Value Collection - 4″ PVC Plastic Pipe Bulkhead Tank Adapter - 37003738 - MSC Industrial Supply
Norwesco - Norwesco 60401 3/4" Bulkhead Fitting and Gasket #NWC60401