Lightweight ABS Bulkhead Tank adapters for usage in aquariums, wet/dry filters, and other industrial/commercial applications. To use: cut a hole in the tank, insert the threaded flange, then tighten the nut. These ABS fittings are reef safe and made in the USA.
Products are listed as Flange side x Nut side. Please refer to our Hole Size Chart for details on hole sizing.