

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The REHAU 381102-001 PRO-BALANCE Manifold is a 2-outlet stainless steel flow balancing manifold designed for radiant heating, radiant cooling, and snow and ice melting systems. It features an R20 x 1 inch connection size with BSP x FNPT connections, making it compatible with a wide range of radiant system configurations commonly installed by hydronic heating professionals and mechanical contractors. The manifold measures 12.2 inches in length, 12.83 inches in height, and 3.9 inches in depth, giving it a compact yet sturdy profile that fits neatly in mechanical rooms and utility spaces. Each circuit on this manifold includes a built-in flow meter that provides visual flow rate readings from 0 to 2 gpm, allowing technicians to monitor and adjust each zone without guesswork. Circuit balancing is performed using the included adjustment key, which makes fine-tuning individual loop flow rates straightforward during commissioning or maintenance. The stainless steel construction resists corrosion and stands up to the demands of hydronic systems carrying heated or chilled water. The manifold is rated for operating pressures up to 44 psi working pressure and 150 psi test pressure, and it handles fluid temperatures from 14 degrees F to 180 degrees F, covering the full range of low-temperature radiant floor heating and freeze-protection applications. Flow meter accuracy is rated at plus or minus 10 percent, giving installers a reliable reference for balancing loop circuits. Because the manifold is typically the most visible component in a radiant system installation, the clean stainless steel appearance of the PRO-BALANCE adds a professional finish to any mechanical space. HVAC technicians, plumbers, and radiant system specialists rely on this type of manifold to ensure even heat distribution across all zones in a building.
The REHAU 381102-001 PRO-BALANCE Manifold simplifies circuit balancing in radiant heating and cooling systems with built-in visual flow meters and an included adjustment key. Its stainless steel build and wide temperature and pressure ratings make it a dependable choice for professional hydronic installations.
Thanks for subscribing!
This email has been registered!