Double Threaded Bulkhead Fitting (1 Inch) Double Threaded Bulkhead Fitting (1 Inch) is a heavy wall PVC bulkhead for larger aquarium, sump, reservoir, and filtration plumbing connections. The double threaded design accepts matching threaded fittings on both the wet side and outside connection side, giving aquarists a serviceable option for drain, return, and utility plumbing. 1 Inch Double Threaded Bulkhead for Aquarium Systems The 1 inch size is a practical choice for higher-flow aquarium plumbing, sump connections, water-change reservoirs, and custom filtration setups. The black PVC body, gasket, and lock nut allow the fitting to create a sealed pass-through when installed through a correctly drilled flat panel. Double Threaded 1 Inch Features 1 inch nominal bulkhead fitting for aquarium plumbing. Threaded wet side and threaded outside connection side. Heavy wall PVC construction for durable plumbing installations. Black finish works well in aquarium backs, overflows, sumps, and equipment areas. Includes gasket and lock nut for a watertight installation. Suitable for reef tanks, freshwater systems, sumps, reservoirs, and filtration equipment. Bulkhead Specifications Product type: Double threaded bulkhead fitting Nominal size: 1 in Connection style: Threaded wet side and threaded outside connection side Material: PVC Colour: Black Required hole size: 1-3/4 in Use: Aquarium, sump, reservoir, and filtration plumbing pass-through Compatibility Notes Use with matching 1 inch threaded fittings. Confirm the hole size before drilling, and install through a flat, clean surface. For best sealing, place the gasket on the wet side and avoid using excessive force on the lock nut or threaded fittings. Directions for Use Cut the required hole, clean and smooth the panel edge, and install the gasket on the wet side of the bulkhead. Insert the fitting through the panel, thread on the lock nut, and hand-tighten until secure. Attach matching threaded plumbing fittings, then perform a leak test before placing the system into operation. What's Included 1 Double Threaded Bulkhead Fitting (1 Inch) 1 rubber gasket 1 lock nut
