Zehnder ComfoTube Flow Dia 90mm, 5m Roll 990 323 552 The testo 915i automatically connects

The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth

• Hi-lift 2L pump

Super tough aluminium and nylon construction

differential temperature & pressure

Zehnder ComfoTube Flow Dia 90mm, 5m Roll 990 323 552 The testo 915i automatically connectsThe Zehnder ComfoTube Flow 90mm 5m is a high performance semi rigid ductwork ideal for residential applications. The low profile, attenuation and thermal properties make it the ideal ductwork for use in small ceiling voids as well as being strong enough to be used in areas where there is a concrete pour. The clinside smooth internal lining helps to reduce the build up of dust and enable the ductwork to be cleaned, this has helped the ductwork achieve