Standard Threaded Bulkhead - 1-1/2"

Parts Fittings/Bulk Heads. Lifegard Aquatics Bulkhead. Always make sure that you have drilled the appropriate size hole to accommodate your bulk head. The rubber bushing always goes on the 'wet' side of the tank or resevoir for a water tight seal. Pentair Aquatics 1 1/2" Threaded Bulkhead is threaded internally on the face end of the bulkhead. The opposite end is for slip fittings. Requires 2 3/8" hole.