Gas Flow regulators are required to ensure you get the required flow and calibration of gas for the applications required. due to the cost effective design of the diffusion based MSA gas detectors, you are able to use a 0.25lpm flow rate compared to the 0.5lpm market standard. Being made of nickel plated polished aluminium, this regulator is hardy and durable. Features and Benefits Low flow rate allows less use of calibrating gases when calibrating MSA Gas detectors. Nickel plated polished aluminium construction creates a hardy and durable regulator