APPLICATION RANGE:Widely used in rain bucket, water tanks or aquariums, faucets, etc., common in mechanical engineering, agricultural irrigation, and household use.DURABLE DESIGN:1. Made of ABS plastic, it has good strength and corrosion resistance.2. With silicon sealing gasket for better sealing; quick and easy installation. You just need to drill the holes and then assemble the bulkhead fittings and hose adapters.PACKAGE INCLUDE:2 Packs of Bulkhead Fitting and Silicone Gasket, Fitting for Wall Thickness: 20mm / 0.79 Inch, Thread Size: G3/4 Thread (Approx. OD 25.7mm/1.01 inch), Nut Max Diameter: 39mm / 1.54 Inch, Hex Base Width: 35mm / 1.38 Inch, Overall Height: 36mm / 1.42 Inch, Silicone Gasket Size: 35x2.5mm / 1.38x0.1 (ODxT).NEED ATTENTION:Drilling tools are not included here.