These compact inline regulators have been designed to suit 8mm (5/16") Evabarrier Tubing.  For higher pressures such as mains water supply we recommend the 4mm ID Tubing here or 5mm ID here if you do not need as high pressures and you would prefer higher flow rate. Suits pressures 0-150psi however this unit is packed with the 0-60psi gauge as standard. Suitable for mains water pressure. Suitable for liquid or gas. Made from Acetal/POM, EPDM o-rings and stainless teeth. Suits 8mm (5/16) OD Tubing such as our Evabarrier Tubing. Includes integrated 0-60psi Pressure Gauge