SwimJoy Vacuum Relief Valve, 3/4" Male Pipe Thread - Allows Gravity Drainage Of Solar Pool Panels & Piping To Prevent Freeze Damage & Extend Service Life

Seals the system when pressurized and allows the panels to gravity drain when the system is off. Designed to be installed on the solar feed plumbing line. 3/4" male pipe thread (MPT) attachment type. Compatibility: SwimJoy solar pool heaters. Product Data Manufacturer: Magen eco-Energy MPN: 2-1810-029 Old Part No: HC-121NW The sale of this product is subject to the terms and conditions of sale https://www.solarpoolsupply.com/pages/terms-conditions.