Duct to Wall Spigot — Essential Ducting Flange for Grow Room Ventilation
Best for: Growers building extraction systems who need a clean, secure way to connect ducting to walls or ceilings
Our thoughts
This is one of those bits you don't think about until you need it, then you realise it's essential. A proper wall spigot takes the guesswork out of connecting ducting and gives your extraction system a finished look. Simple, reliable, does exactly what it should.
A duct to wall spigot is a flanged connector that lets you attach ducting cleanly to your grow room walls or ceilings. The flange screws or glues to the wall over your outlet point, and the rim accepts ducting via clip or tape. It's a small fitting that makes a real difference — covers gaps, keeps drafts out, and gives your ventilation setup a professional finish instead of looking bodged.
How it compares
Wall spigots sit at the heart of any proper extraction system.
- Much neater than running bare duct straight through a hole
- Secures ducting firmly — no movement, no noise, no slipping
- Covers wall imperfections and reduces dust ingress
- Available in steel or plastic, round or square, to suit your setup
- Essential fitting — most growers need at least two (inlet and outlet)
In short: you're not paying for fancy features. You're buying something that actually solves the problem of connecting ducting to a wall properly.
Usage guidance
Wall mounting
Drill holes through the flange to match your wall. Screw it down so it sits flush over your pre-made outlet hole. Use rawl plugs if you're going into plasterboard.
Attaching ducting
Push the ducting over the rim and secure with a jubilee clip or duct clamp. Duct tape works for smaller setups, but clips give you a neater, more permanent fix.
Grow tent integration
These work just as well creating outlet points in grow tent walls. Mark your hole, cut it out, and flange it from the outside. Keeps the interior tidy.
Sizing
Match the spigot diameter to your ducting. Standard sizes are 100mm, 125mm, and 150mm. Get the wrong size and you're fighting it — get the right one and it slides on clean.
Technical specifications
- Available sizes: 100mm, 125mm, 150mm diameter
- Configurations: Round and square options
- Material options: Galvanised steel (durable, long-lasting) or white plastic (lightweight, cost-effective)
- Installation: Screw-fixed to wall/ceiling via flange
- Ducting attachment: Via jubilee clip, duct clamp, or duct tape
- Finish: Covers gaps between ducting and wall, reduces drafts and dust ingress
Who this is for
- Growers setting up extraction systems from scratch
- Anyone replacing a dodgy ducting setup with something that actually works
- Grow tent users wanting to add proper inlet/outlet points
- Growers who care about keeping dust and pests out of the room
- Anyone building a system they want to look finished and professional
Particularly suited to growers who understand that proper ventilation is non-negotiable — and that means doing the ducting fittings right.
Our take
A duct to wall spigot is one of those small items that separates a properly thought-through extraction setup from a makeshift one. It's not glamorous, but it works. Secures your ducting, tidies your room, and keeps your air conditioning running efficiently.
Good time to buy while stock lasts. Get the size that matches your ducting, pick steel if durability matters, plastic if budget's tight, and get your extraction sorted properly.
