Ducting Accessories

13 products

Ducting accessories are the clips, fixings, access doors and sealants that finish off a ventilation duct installation and keep it serviceable. We stock stainless steel Jubilee hose clips from 100mm to 203mm plus HC clip packs, cut-to-length clip band and quick release locks, Systemair FK fast clamps for mounting circular duct fans and FSAF matching flanges for Systemair axial fans, Easyfit duct access doors, plastic plenum back boxes for connecting round duct to square grilles, and intumescent sealant for fire rated penetrations. Use the buttons below to browse by type, or for help, email hello@efans.co.uk or call 0161 399 3825.

Frequently asked questions

What size Jubilee clip do I need?

Match the clip to the outside diameter of the joint it goes around. On rigid duct and spigots that is usually the nominal duct size, so a 125mm clip for 125mm duct. Flexible ducting is slightly bigger than its nominal size because of the corrugated wall, so check the clip's range covers the outside of the flex. See our hose clips for every size.

What are Systemair FK fast clamps for?

FK fast clamps hold a circular duct fan in the duct run and let you release it quickly for servicing or cleaning without dismantling the ductwork. They suit circular duct from 100mm to 500mm diameter and help keep the joint air tight and free of vibration.

What are FSAF matching flanges?

FSAF flanges are hot-dip galvanised flanges made to match the Systemair axial fan range from 250mm to 710mm. They are dual drilled to suit both drilling patterns and have a locking groove for fitting a flexible connector between the fan and the ductwork.

When do I need a duct access door?

Fit an access door wherever the duct will need inspecting or cleaning, for example next to fire dampers, filters, coils and along kitchen extract runs. Make sure the door itself can be reached once ceilings are closed. See our duct access doors.

What is a plenum back box?

A plenum back box, or plenum box, connects a round duct to a square ceiling or wall grille. The round spigot is on top and the square face sits behind the grille. Ours come in 15 combinations of face size (150 to 550mm) and spigot size (100 to 315mm).

Do I need intumescent sealant?

If the duct passes through a fire rated wall or floor, the gap around it must be sealed to keep the fire rating. Intumescent sealant expands in a fire to close the gap. This is in addition to any fire damper the duct needs. See our tapes and sealants, or email hello@efans.co.uk or call 0161 399 3825.

Hose Clips Access Doors Tapes & Sealants Plenum Boxes