Features 1. Bulkhead Water Tank Connector: The threaded bulkheads for rain barrels, water tanks, or aquariums, spigot and so on, bringing convenience to your daily life. 2. Size Information: The double threaded bulkhead fittings are 3/4 inch male thread, which are applicable models fitting for most rain barrels, water tanks, ponds, or aquariums. 3. Quality Material: The water tank connector threaded bulkhead is made of quality PVC material, which will not fade, crack, or peel, so it is durable to serve you for a long time, giving you good use feeling. 4. Easy to Install: First you need to drill a 25-26mm hole for installation, then assemble the PVC bulkhead and hose adaptor together; No doubt, it is easy to operate. 5. Multi-Functional Tool: The threaded bulkhead will contour to the shape of the round barrels, maintaining your barrel with fresh rain water season after season; It is suitable for both commercial and industrial use. Specification Material: PVC Color: Black Size: 4 x 2 x 1 cm Weight: 20 g Package Include: 1 Bulkhead Fitting or 4 Bulkhead Fittings