100mm Branch

Need a 100mm (approx. 4″) branch off your spiral ductwork? These 90° curved boot saddles all carry a 100mm branch connection, with 23 main-duct sizes available, from 100mm up to 1000mm. Each fitting sits over a hole cut in the main duct, giving a swept 90° take-off into the branch. Alpha Air is a Leicester-based ventilation supplier — main-duct sizes up to 355mm are stocked for next-day delivery when ordered by 3pm; larger sizes are made to order and despatched in 2-3 working days.

Other branch sizes are listed in the main 90 Degree Curved Boot category.