Lightweight, easy to install ducting made of 5 layer aluminium foil/ polyester on a steel wire helix. The strength of the helix resists distortion and damage due to rough handling.
Fire Rating:When assessed against the integrity criterion of BS476: Part 20; 1987, the ducting is capable of providing in excess of 39 minutes integrity from inside to outside. Available in 100, 125, 150m 200, 250, 315 and 400mm diameter sizes to fit spigot sizes on all modular components in the Airtrak range, (except ACP300).
Standard length: 10 metres.