Product description: CO2 pressure regulator for all standard CO2 bottles. Suitable for direct connection to the Brita Yource system. Easy to use. Adjustable pressure EU standard 21.8 x 1/14. Output pressure adjustable 0-5.5 bar. Connection Output: 1/4" Female Thread Dimensions: 148mm x 88mm x 79mm Box contents: 1 x CO2 pressure regulator for reusable bottles including connection for Brita Yource Water Group CO2 pressure regulator for reusable bottles including connection suitable for Brita Yource system