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3 Branch PEX Manifold Radiant Floor Heating Set Stainless Steel Introduction: Tech Date: No. of PEX outlets: 6 (3 on the Supply PEX manifold + 3 on the Return PEX manifold) For use with PEX tubing sizes: 3/8", 1/2" & 5/8" Manifold trunk size: 1-1/4" Valve inlet connections: 1" NPT Distance between PEX branches (on center): 2" Max. flow per individual branch: 1.4 GPM Overall width (with valves): 19.5" Overall height: 14" Overall depth: 4" (will fit inside a 2x4 frame wall) Features: Automatic air vent (air eliminator):Float type air vent is used to automatically purge the air out of the radiant heat system. Air vent cap is included for pressure testing purposes Drain valves:Both drain valves feature a 3/4" male garden hose connection for convenient draining/filling of the system. Caps included Mounting brackets with bolts:Heavy-duty design and custom engineered to offset the manifold from the mounting surface for easy access and installation of PEX tubing