Constructed from solid brass and stainless steel spring for enhanced durability and resistance. devised for a wide range of applications, effectively managing water, oil, and Gases flow without reflux. Inline devise allows for easy installation in various plumbing systems, ensuring reliable performance. Operates under normal temperature conditions with a maximum pressure rating of 200# WOG. Environmentally friendly option for discharging sewage and Gases, contributing to sustainable practices., Manufacturer: LMRXOFE