[Suitable for low temperatures] This adapter from us can be used many times in temperatures, making it more convenient to use. [Excellent Filter Elements] Our adapters use an improved filter material that eliminates the taste and smell of carbonated water for a better experience. [Wide range of applications] The CO2 bottle refill adapter can connect the bottle to any CO2 tank, suitable for gas tanks with or without residual pressure valve [Brass Material] Brass has high strength, good plasticity, withstands cold and hot pressure well and has a long service life. Good sealing performance: When using this adapter to connect the cylinder, no air leakage occurs and the use is . Material: brass colour: gold Package Contents: 1 x inflatable valve 1 set accessories Only the above package content, other products are not included. Note: Light reflection 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.