ITEM NAME:Stainless Steel Beer Keg Lid Threaded Homebrew Beer Growler Keg Lid Cap Description: Beer keg lid with pressure relief valve. Material: 316 stainless steel, anti-rust and durable. Designed with O- seal for leakage prevention. Connecting Keg Threading: 15/16"-16unf This valve is designed for 3/4" hole, fits standard beer growler 2L, 3.6L, 5L, 8L. Weight: 140g Package Includes: 1 Piece Metal Keg Lid with Relief Valve.This valve is designed for 3/4" hole, fits standard beer growler 2L, 3.6L, 5L, 8L. Beer keg lid with pressure relief valve. Connecting Keg Threading: 15/16"-16unf. Material: 316 stainless steel, anti-rust and durable.