Standard Thread Bulkhead Fitting (1 Inch) Standard Thread Bulkhead Fitting (1 Inch) is a heavy wall PVC bulkhead fitting for creating a watertight pass-through in aquariums, sumps, reservoirs, and filtration systems. It accepts a matching threaded fitting on the tank side and slip pipe on the outside, making it useful for many custom aquarium plumbing layouts. 1 Inch Standard Thread Bulkhead for Drains and Returns The 1 inch size is a popular option for aquarium drains, returns, sump connections, and utility plumbing where moderate flow capacity is needed. The threaded wet side allows use with threaded strainers or fittings, while the outside slip connection supports permanent glued plumbing runs. Standard Thread 1 Inch Features 1 inch nominal bulkhead fitting for aquarium and filtration plumbing. Threaded wet-side connection for matching threaded fittings. Slip pipe outside connection for glued plumbing installations. Heavy wall PVC construction for durable use. Black finish blends into aquarium backs, overflow boxes, and sump areas. Includes gasket and lock nut for installation through a drilled panel. Bulkhead Specifications Product type: Standard thread bulkhead fitting Nominal size: 1 in Connection style: Threaded wet side and slip outside connection Material: PVC Colour: Black Required hole size: 1-3/4 in Use: Aquarium, sump, reservoir, and filtration plumbing pass-through Compatibility Notes Use a matching 1 inch threaded fitting on the wet side and compatible slip pipe on the outside connection. The exterior lock-nut threads are for securing the bulkhead nut only and are not the outside pipe connection. Check hole size and plumbing clearances before installation. Directions for Use Drill the required hole in a clean, flat panel and smooth the edge. Place the gasket on the wet side, insert the bulkhead, and hand-tighten the lock nut on the opposite side. Connect the wet-side threaded fitting and outside slip plumbing, allow glued joints to cure as directed, and perform a leak test before normal operation. What's Included 1 Standard Thread Bulkhead Fitting (1 Inch) 1 rubber gasket 1 lock nut
