6mm Duo Board System (x 4 pairs) ato The maximum length of pipe

The maximum length of pipe is 120 linear metres

20mm boards use 16mm pipe in 100m maximum lengths

Designed to be used with separate Wunda 20mm Rapid Response end return boards

Supplied with a Grundfos Pump

Manifold bar isolation valve with temperature gauge

6mm Duo Board System (x 4 pairs) ato The maximum length of pipeDuo Board is a free floating HDF sub floor specifically designed for installation over floor heating to provide a smooth, stable and level base for laying off the roll carpet, vinyl and linoleum directly onto . The DUO BOARD system comprises of two layers, a base board with adhesive surface and a top board both are laid in an overlap brick bond fashion. Expansion joints required in any 8 mtr direction. DUO BOARD require the use of Vapour Barrier