Allows fluid to only flow in one direction. Prevents
backflow. Heavy duty brass body with
stainless spring. 1/2" (FPT x MPT) or 3/4 (FPT x MPT)
Have a Question? Please Email me at dmckay@dan-marc.com or give me a call during regular business hours (Eastern time) at 330-556-5080 Or Toll Free (844)978-PART (978-7278)Thanks.. Dan