The 2plus3TM and the 2plus3TM SuperFlow are the new generation manifolds for underfloor heating, made from composite material, designed for compatibility with low-temperature systems such as heat pumps and hybrids. Thanks to the insulating properties of composite, this manifold is ideal for both heating and cooling applications.
Its flexible design allows for easy assembly of 2-outlet and 3-outlet segments, using a patented click mechanism to create configurations with up to 20 outlets. Featuring a compact and efficient design, the 2plus3TM and the 2plus3TM SuperFlow offer a modern, durable alternative to traditional stainless steel manifolds.
Compact design
Fit the Model 2plus3™ in nearly any size underfloor heating cabinet.
Durable
Enjoy 25-years warranty as a result of the high quality composite material and robust design. 100% oxygen barrier, certified by Kiwa™.
Ease of use
Combine the 2plus3™ SuperFlow with a wide range of accessories to create the most versatile manifold on the market.
Low temperature heating
Be future-proof for heating and cooling spaces through heat pumps and hybrids.
Minimal inventory
Keep your inventory at minimum by combining only 2s and 3s to create any size manifold.
High flow capacity
The 1 1/2" manifold diameter ensures high water flow and minimizes pressuredrop.
Ceiling cooling compatibility
Optimized for ceiling cooling systems: no condensation, high insulation, and high flow integration with your system.
Fully Adaptable Connection
Providing unmatched flexibility with our full range of pipe connectors: compatible with composite, brass, and push-fit connections to suit all market options.
Two versions: basic and advanced
Basic with brass closing caps; Advanced with 2–12 L/min high-precision flowmeters.
Composite or brass EasyConnectors
Choose your preferred aesthetic and technical option, same part number.
System integration with radiant manifolds
Perfectly matches SuperFlow, Solid Brass, and Composite Evolution for hybrid heating & cooling systems.
High flow performance
Ensures optimal flow, even with multiple fan coil units in parallel.
Modular and compact
Flexible configuration from 2 to 8 outlets. Easy to handle and spacesaving.
Optional EPP insulation
The perfect match for composite: adds extra protection against condensation in chilled water systems.
Cooling & Heating Ready
Specifically designed for fan coil and terminal units. Ideal for lowtemperature cooling and heating applications.
Built to last
Corrosion-free composite body. Avoids common mistakes like using non-ideal accessories from radiant applications.
Compact design
Fit the Model 2plus3™ in nearly any size underfloor heating cabinet.
Minimal inventory
Keep your inventory at minimum by combining only 2s and 3s to create any size manifold.
Ease of use
Combine the 2plus3™ with a wide range of accessories to create the most versatile manifold on the market.
Low temperature heating
Be future-proof for heating and cooling spaces through heat pumps and hybrids.
Proven Product Since 2003
One of the first composite manifolds in Europe, now available in a newly updated version. Experience the benefits of an ultra-reliable design perfected over 20+ years.
Fully Adaptable Connection
Providing unmatched flexibility with our full range of pipe connectors: compatible with composite, brass, and push-fit connections to suit all market options.
Compact design
Fit the Model 2plus3™ Composite Evolution in nearly any size underfloor heating
Minimal inventory
Keep your inventory at minimum by combining only 2s and 3s to create any size manifold.
Ease of use
Combine the 2plus3™ SuperFlow with a wide range of accessories to create the most versatile manifold on the market.
Low temperature heating
Be future-proof for heating and cooling spaces through heat pumps and hybrids.
Proven Product Since 2003
One of the first composite manifolds in Europe, now available in a newly updated version. Experience the benefits of an ultra-reliable design perfected over 20+ years.
Fully Adaptable Connection
Providing unmatched flexibility with our full range of pipe connectors: compatible with composite, brass, and push-fit connections to suit all market options.
Polytherm, with its proven expertise in underfloor heating systems, also offers a range of high-quality accessories and special configurations — such as air and sludge separators, differential pressure valves, and custom fittings — designed to maintain system performance and durability over time.
Whether you’re working on new installations or retrofits, our accessories ensure maximum efficiency, system protection, and seamless integration with our 2plus3™ manifolds.
