Brass Gas Refill Adapter with O Seal Gasket for Outdoor Camping

Description: Usage: Weigh unused full canister and write with felt the base. Place empty canister to be refilled in freezer for approx. half hour or overnight. Remove canister from freezer and place adapter onto the canister. Take your new full canister and insert into adapter. Push canister firmly down -15 a time checking each time the weight of the canister until it matches the weight written on the base. Materials: Copper Specification: Diameter: approx. 10mm/ 0.4 inch; Length: approx. 16mm/ 0.63 inch Package Includes: 1 Piece Gas Canister Refill Adapter 2 Pieces