[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: brasscolour: goldPackage Contents:1 x inflatable valve1 set accessoriesOnly 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.