12-Branch Stainless Steel PEX Manifold 1/2 in. for Hydronic Radiant Floor Heating with Valves

Built for large hydronic radiant projects, this 12-branch stainless steel PEX manifold gives builders and HVAC techs a single high-capacity unit to serve up to 12 separate heating zones from one supply line. The 304 stainless steel body resists corrosion and high-temperature water common in glycol-water radiant systems, while each branch carries its own visual flow meter and shut-off valve so installers can balance every loop independently and isolate any zone for service. The complete connection kit ships with 1/2 in. PEX adapters, 1 in. NPT supply and return ball valves, and 2 dual-scale Celsius/Fahrenheit gauges, removing extra trips to the supply house for fittings on mixed-crew jobs. Each loop handles up to 5 L/min, enough capacity for typical residential or light commercial zones, and pre-drilled mounting brackets let you fasten the unit flat to a stud wall or mechanical-room panel without fabricating new mounts. From custom whole-home builds and finished basements to small commercial spaces with many radiant zones, the 12-branch layout cuts the wall space needed compared to chained smaller manifolds while still giving you per-zone control.