Specification: Material: ABS Color: White Female Thread Diameter: G1/2 Barb Diameter: 12mm / 0.47" Total Size: 60 x 40mm / 2.36" x 1.57"(L*D) Description: 1. Adapter for connecting pipes or hoses of different types. 2. ABS material for strength and resistance to acids, gasoline, alcohol, and hydrocarbons. 3. Barbed fitting provides a tight seal on flexible tubing when used with a hose clamp (NOT Included Here) 4. Hose barb on one end and female G threads on the other, no leaking and durable, easy to connect and disconnect. 5. Widely used for Aquariums, Water Tanks, Tubs, Pools, etc. Package Content: 4 x Bulkhead Fitting