This in line regulator is suitable for GAS OR LIQUID

Constructed with Non-Corrosive Acetyl, Nitrile & Stainless Components. The Regulator body has two wall mounting points.
Also includes two 6mm barbs as shown in the photo. Suitable for 6mm & 5mm ID tubing. 
These regulators work great for reducing your mains pressure from 0-159psi. The maximum inlet pressure is 150psi.

The regulator can be adjusted with a normal flat head screw driver.