PERFECT SIZE: 4.25 x 3inch; Weight: 5.3OZ; Valve seat diameter: 5/8 inch; This product fit for Berkey and other Gravity Filter systems. FOOD SAFE:The spigot is made completely from STAINLESS STEEL with no plastic, so no dangerous chemicals will leach into your beverages. ALL HARDWARE INCLUDED:Our easy to install spigot comes with all of the necessary hardware, including Two rubber waterproof washers, Two large metal washers, and metal installation nut. EASY TO INSTALL: You don't need installation work, just need 5/8 inch or 16mm diameter opening to install. Even people who are weak can be easily installed. Colour: silver Material: stainless steel Size: 16mm Package Contents: 2 x beverage dispenser spigot Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.