PRECISION PLUMBING PRODUCTS PRO1-500 1/2" NPT Lead Free Trap Primer

Prime-Pro Trap Primer Valve, with Vacuum Breaker Ports and Internal Back-Flow Protection. The Prime-Pro is Activated when Sensing Potable Water Flowing at an Adjacent Plumbing Fixture. Valve must be Installed on the Cold Water Line Leading to the Plumbing Fixture. Valve then Emits Fresh Cold Potable Water to a Floor Drain Trap as Long as the Fixture is in Use, Providing Adequate Trap Seal.