Best Ventilation & Ducting — 100mm x 3m (2026)
1 ventilation & ducting matching size “100mm x 3m”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Ventilation & Ducting UK (2026) guide.
This 100mm x 3m ventilation ducting is a versatile solution for directing airflow in various home applications. Constructed from robust, flexible PVC, it’s ideal for connecting extractors to hoods, vents or other outlets. The generous 3-metre length provides significant reach and flexibility when routing air through walls or ceilings – perfect for kitchens, bathrooms, or small workshops needing improved ventilation.
The 100mm diameter is suitable for a wide range of standard extractor fans and creates a relatively low airflow resistance, ensuring efficient removal of moisture and odours. This ducting offers a simple way to improve indoor air quality and reduce condensation build-up where it’s needed most. Please note that the PVC material is suitable for interior use only; avoid prolonged exposure to direct sunlight or outdoor conditions.
This kit delivers a cost-effective solution for DIY ventilation projects, allowing you to tailor your airflow needs precisely. It's commonly used in conjunction with 100mm extractor fans and offers a straightforward way to upgrade existing ventilation systems. Check Amazon UK for compatible fan options and further accessories.
#1 Pick
Manrose 100mm x 3m Circular Flexible PVC Hose Ducting- PVC
- 100mm x 3m
£13.43
Pros
- Flexible PVC bends easily around tight corners
- Budget-friendly way to extend or replace an existing duct run
- 3m length suits most single-fan installations
Cons
- Less rigid than aluminium ducting, can compress if kinked
FAQ
What is this ducting made of?+
This 100mm x 3m ventilation ducting is manufactured from flexible PVC, chosen for its durability and ability to bend easily around corners. It’s a common material used in home ventilation systems due to its resistance to moisture.
What size extractor fan will this fit?+
This 100mm diameter ducting is generally compatible with standard 100mm extractor fans, although precise dimensions of your chosen fan should be checked before purchase. Ensure the fan’s inlet grille matches the 100mm diameter.
Can I use this ducting outdoors?+
No, this PVC ducting is specifically designed for indoor use only. Exposure to prolonged sunlight or outdoor conditions can degrade the material and affect its performance. It is not suitable for external ventilation applications.
How flexible is the 3m length?+
The PVC material offers a good degree of flexibility, allowing you to route the ducting around obstacles and bends. However, it's still a relatively rigid tube – avoid sharp kinks or excessive bending which could compromise airflow.
What tools do I need to install this?+
You’ll typically need a utility knife for cutting the PVC to length, plus some adhesive tape to secure connections and prevent air leaks. A measuring tape is essential for accurate placement.
Is it easy to connect to an extractor fan?+
Connecting this ducting to an extractor fan is straightforward; simply slide the flexible PVC onto the fan’s outlet. Ensure a snug fit, but avoid over-tightening which could damage the fan or ducting.
What if I need to shorten the 3m length?+
The PVC material can be cut with a utility knife; however, ensure you have sufficient overlap for secure connections and consider using appropriate adhesive tape to reinforce the joint.
Will this ducting restrict airflow?+
With a 100mm diameter, this ducting offers relatively low resistance to airflow, suitable for most standard extractor fans. However, excessively long runs or sharp bends could slightly reduce air velocity – consider minimizing these factors.
What is the minimum bend radius I should use?+
To maintain optimal airflow, avoid bending the PVC ducting beyond a 45-degree angle. Sharp bends can significantly restrict airflow and reduce efficiency. Gentle curves are preferred.
Does this come with any accessories?+
This listing typically includes just the 100mm x 3m ventilation ducting. However, you may find additional accessories, such as connectors and tape, available on Amazon UK alongside compatible extractor fans.