Bestschweissen.de CO2 Refill Adapter for SodaStream Cylinder, Water Carbonator Blue TR21-4 to W21.8 Transfer with Pressure Gauge and Bleed Valve, 64 cm Aluminium

Water carbonator adapter with hose: the 64 cm long overall system (including approx. 20 inch long hose) allows for convenient and safe filling of your empty blue cylinders. Thanks to the high-quality construction made of lightweight, robust aluminium, the system is durable and perfect for regular use at home. CO2 transfer adapter W21.8: connect your large standard carbon dioxide bottle (mother bottle) effortlessly to the small water carbonator cylinder. The input port fits exactly on standard large bottles, while the output port is designed for the classic, blue screw-in cylinders. TR21-4 MANOMETER REFILL ADAPTER: Maximum control throughout the process. The built-in pressure indicator shows you exactly how much pressure is in the system. In addition, the silver bleed valve ensures safe release of the residual pressure before you remove the bottle after the filling process. Fill CO2 hose: the process is very simple: set the copper knob to "ON", open the valve of the large bottle very slowly (a hiss is audible) and wait until the gas has been transferred. Tip for maximum results: place the empty cylinder in the freezer before the process. Thread TR21-4 to W21.8: Important compatibility note! This product is only suitable for the classic blue bottles with screw thread. It is not compatible with the newer "Quick Connect" system (pink bottles). A scale helps you to precisely maintain the recommended maximum capacity of 425 g.