Zehnder GD Rectangular Ducting, Insulated GD8 Duct 204x60 mm Size:Zehnder GD rectangular ducting, insulated GD8 duct, 204 mm x 60 mm x 1 m so the system has to

so the system has to work harder to dissipate the heat

- Units do not have spigots

Inlets : 40mm in

the optional Testo Smart Probes for temperature

Zehnder GD Rectangular Ducting, Insulated GD8 Duct 204x60 mm Size:Zehnder GD rectangular ducting, insulated GD8 duct, 204 mm x 60 mm x 1 m so the system has toThe Zehnder 204 mm x 60 mm self seal insulated ducting is perfect for meeting Building Regulations for insulation whilst minimising air leakage. The lightweight and robust ductwork along with the self seal connection mean this can be installed much faster than conventional rockwool insulation. The PUSH CLICK LOCK connection eliminate the need for tape, sealant and screws and also exceeds the requirements set out in DW 143 Class A Leakage Test and DW