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Duct Clamp for Four Inch Ducting and 100mm Extractor Fans
Duct Clamp for Four Inch Ducting and 100mm Extractor Fans

Product Description

Individual Duct Clamp for Four Inch Ducting.

If you're using flexible ducting you should also be using duct clamps.

Once the ducting has been fitted around the spigots of both the fan and the grille the duct clamp is fastened around the ducting and tightened.

Ensuring that the ducting is tightly fitted to the spigots gurantees that it will not become detached from either the fan or grille over time. It also ensures that the ducting makes one unified ventiation system without air leaks between the extractor fan and grilles.

Remember, if you are purchasing an inline fan, you will need four duct clamps: one for each end of the fan and one each for the internal and external grilles. If you are installing an inline backdraft grille you will need an additional two clamps.

Specifications

Brand
National Ventilation
Product Code
DUCT CLAMP 3

Customer reviews

(3 Customer reviews)
Write A Review
5 Stars
100%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
0%

Top quality clips Verified Purchase

These are great. I really like how you can fully open them - handy if you accidentally forget to slip the clip over the ducting before putting it onto the spigot.

David Turpin | Gateshead | October 2025

Excellent product. Gives a secure fitting to the duct. Easy to fit.

Does exactly what it is intended for.

Colin Smyth | Leicester | October 2025

Easily makes a proper sealed joint

I liked the quick adjustment and the positive location when it was being tightened with a screwdriver. So much better than making the joint between the flexible ducting and the fan with take or cable ties. Also these clamps are not expensive for what they do.

David Gawn | Ballyclare | September 2023

Individual Duct Clamp for Four Inch Ducting.

If you're using flexible ducting you should also be using duct clamps.

Once the ducting has been fitted around the spigots of both the fan and the grille the duct clamp is fastened around the ducting and tightened.

Ensuring that the ducting is tightly fitted to the spigots gurantees that it will not become detached from either the fan or grille over time. It also ensures that the ducting makes one unified ventiation system without air leaks between the extractor fan and grilles.

Remember, if you are purchasing an inline fan, you will need four duct clamps: one for each end of the fan and one each for the internal and external grilles. If you are installing an inline backdraft grille you will need an additional two clamps.
(3 Customer reviews)
Write A Review
5 Stars
100%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
0%

Top quality clips Verified Purchase

These are great. I really like how you can fully open them - handy if you accidentally forget to slip the clip over the ducting before putting it onto the spigot.

David Turpin | Gateshead | October 2025

Excellent product. Gives a secure fitting to the duct. Easy to fit.

Does exactly what it is intended for.

Colin Smyth | Leicester | October 2025

Easily makes a proper sealed joint

I liked the quick adjustment and the positive location when it was being tightened with a screwdriver. So much better than making the joint between the flexible ducting and the fan with take or cable ties. Also these clamps are not expensive for what they do.

David Gawn | Ballyclare | September 2023

Brand
National Ventilation
Product Code
DUCT CLAMP 3

3 Customer Reviews

Duct Clamp for 4 inch 100mm Ducting and Spigots

In Stock

Product Code DUCT CLAMP 3

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