What is COMBI ducting?
COMBI ducting is flexible ventilation ducting with a reinforced outer construction, providing a practical and robust way to connect ventilation equipment while retaining the flexibility needed for installation.
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127mm (5”) x 5m COMBI Ducting - Reinforced Flexible Ventilation Duct
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429
£4.29
Unit price perEstimated delivery between November 01 and November 03.
127mm (5") x 5m COMBI Ducting is a flexible reinforced ventilation duct designed for reliable air movement in extraction and intake systems.
COMBI ducting combines the flexibility required for straightforward installation with a more robust outer construction than basic foil ducting. It is well suited to ventilation systems where ductwork needs to negotiate equipment, corners or other obstacles while remaining easy to position.
The flexible construction allows the duct to be extended, routed and cut to the required length, making it a practical choice for both new ventilation installations and replacement duct runs.
With a nominal diameter of 127mm / 5", this 5 metre length is designed for use with compatible fans, filters, connectors, reducers and other round ventilation components.
Why choose COMBI ducting?
- Reinforced flexible construction - designed to provide a more robust ducting solution while retaining installation flexibility.
- 127mm / 5" diameter - suitable for compatible 5-inch round ventilation systems.
- 5 metre length - provides flexibility when planning and installing duct runs.
- Suitable for extraction - ideal for carrying extracted air away from controlled environments.
- Suitable for air intake - can also be incorporated into compatible fresh-air intake systems.
- Flexible routing - useful where ductwork needs to pass around equipment or changes in direction.
- Can be cut to length - use only the amount required for the installation.
- Compatible with common ventilation equipment - suitable for matching fans, filters and round duct fittings.
- Easy to secure - compatible connections can be mechanically fixed using appropriately sized ducting clips or clamps.
Flexible ducting for controlled environment ventilation
Effective ventilation depends on moving air between components with as little unnecessary resistance as practical. Flexible COMBI ducting makes it easier to create a complete duct route without requiring rigid sections throughout the installation.
It is suitable for connecting compatible extraction fans, air filters and ventilation fittings in propagation areas, growing areas, nurseries and other controlled horticultural environments.
The duct can also be used for general ventilation applications where a flexible 127mm air duct is required.
Installing 127mm COMBI ducting
Extend the ducting to the required length and plan the route before making the final connections. Keeping the duct run reasonably direct helps reduce unnecessary airflow resistance.
Avoid excessively tight bends, severe compression or crushing the duct, as restrictions in the airflow path can reduce ventilation performance.
Fit the duct securely over compatible 127mm connections and use an appropriately sized ducting clip or clamp to create a reliable mechanical fixing. Suitable HVAC foil tape can also be used where additional air sealing is required.
Longer runs should be supported where necessary rather than allowing excessive sections of ducting to hang unsupported.
Getting the best airflow from flexible ducting
Flexible ducting provides considerable installation freedom, but the route of the duct still affects the performance of the ventilation system.
For efficient airflow, use the shortest practical duct route, minimise unnecessary bends and avoid leaving excessive compressed duct between components. Where a direction change is required, a gradual bend is preferable to a tightly folded section.
Fan performance should always be considered across the complete ventilation system, including the duct length, bends, filters, silencers, reducers and other fittings installed in the airflow path.
127mm (5") x 5m COMBI Ducting product details
| Product type | Reinforced flexible ventilation ducting |
|---|---|
| Nominal diameter | 127mm / 5" |
| Length | 5m |
| Duct type | Flexible |
| Primary purpose | Air extraction & intake ventilation |
| Compatible system size | Nominal 127mm / 5" round ventilation systems |
| Suitable connections | Compatible fans, filters, connectors, reducers & round ventilation fittings |
| Suitable applications | Controlled environment, propagation, nursery, growing area & general ventilation installations |
127mm (5") x 5m COMBI Ducting FAQs
What diameter is this COMBI ducting?
This version has a nominal diameter of 127mm, commonly referred to as 5-inch ducting.
How long is the ducting?
This product is supplied as a 5 metre length.
Can COMBI ducting be used with a 5-inch extraction fan?
Yes, it can be used with compatible fans designed for nominal 127mm / 5" ventilation connections.
Can it connect to a carbon filter?
Yes. The ducting can be connected to a compatible 127mm carbon filter or to suitable adapters where different component sizes are being combined.
Can COMBI ducting be used for air intake?
Yes. It can be used for both extraction and intake applications within a compatible ventilation system.
Can I cut the 5m duct to a shorter length?
Yes. Flexible ducting can be cut to suit the installation, allowing the 5 metre length to be divided or shortened as required.
Do I need to use the full 5 metres?
No. Use only the length required. Keeping duct runs as short and direct as practical generally helps minimise resistance to airflow.
How should COMBI ducting be attached?
Fit the duct over a compatible connection and secure it with an appropriately sized ducting clip or clamp. HVAC foil tape can be added where further air sealing is required.
Can the ducting bend around obstacles?
Yes. Its flexible construction allows it to be routed around equipment and obstacles, although gradual bends are preferable to tight folds or sharp restrictions.
Do bends in flexible ducting reduce airflow?
Every duct system creates some resistance. Excessive duct length, tight bends and compressed sections can increase that resistance, so a direct and unrestricted route is preferable.
Can this ducting be used with reducers and connectors?
Yes. Compatible round connectors, reducers, elbows and other ventilation fittings can be incorporated into the duct system as required.
Should long sections of flexible ducting be supported?
Yes. Supporting longer sections can help prevent excessive sagging and keep the intended airflow route in place.
Is COMBI ducting the same as acoustic ducting?
No. COMBI ducting is primarily a reinforced flexible air duct. Acoustic ducting incorporates additional insulation specifically intended to help reduce the transmission of fan and airflow noise.
Is this suitable for horticultural ventilation?
Yes. It is suitable for compatible ventilation systems used in propagation, nursery and controlled growing environments, as well as general ventilation applications.
127mm (5”) x 5m COMBI Ducting - Reinforced Flexible Ventilation Duct
Please sign in to see pricing
429
£4.29
Unit price per127mm (5") x 5m COMBI Ducting is a flexible reinforced ventilation duct designed for reliable air movement in extraction and intake systems.
COMBI ducting combines the flexibility required for straightforward installation with a more robust outer construction than basic foil ducting. It is well suited to ventilation systems where ductwork needs to negotiate equipment, corners or other obstacles while remaining easy to position.
The flexible construction allows the duct to be extended, routed and cut to the required length, making it a practical choice for both new ventilation installations and replacement duct runs.
With a nominal diameter of 127mm / 5", this 5 metre length is designed for use with compatible fans, filters, connectors, reducers and other round ventilation components.
Why choose COMBI ducting?
- Reinforced flexible construction - designed to provide a more robust ducting solution while retaining installation flexibility.
- 127mm / 5" diameter - suitable for compatible 5-inch round ventilation systems.
- 5 metre length - provides flexibility when planning and installing duct runs.
- Suitable for extraction - ideal for carrying extracted air away from controlled environments.
- Suitable for air intake - can also be incorporated into compatible fresh-air intake systems.
- Flexible routing - useful where ductwork needs to pass around equipment or changes in direction.
- Can be cut to length - use only the amount required for the installation.
- Compatible with common ventilation equipment - suitable for matching fans, filters and round duct fittings.
- Easy to secure - compatible connections can be mechanically fixed using appropriately sized ducting clips or clamps.
Flexible ducting for controlled environment ventilation
Effective ventilation depends on moving air between components with as little unnecessary resistance as practical. Flexible COMBI ducting makes it easier to create a complete duct route without requiring rigid sections throughout the installation.
It is suitable for connecting compatible extraction fans, air filters and ventilation fittings in propagation areas, growing areas, nurseries and other controlled horticultural environments.
The duct can also be used for general ventilation applications where a flexible 127mm air duct is required.
Installing 127mm COMBI ducting
Extend the ducting to the required length and plan the route before making the final connections. Keeping the duct run reasonably direct helps reduce unnecessary airflow resistance.
Avoid excessively tight bends, severe compression or crushing the duct, as restrictions in the airflow path can reduce ventilation performance.
Fit the duct securely over compatible 127mm connections and use an appropriately sized ducting clip or clamp to create a reliable mechanical fixing. Suitable HVAC foil tape can also be used where additional air sealing is required.
Longer runs should be supported where necessary rather than allowing excessive sections of ducting to hang unsupported.
Getting the best airflow from flexible ducting
Flexible ducting provides considerable installation freedom, but the route of the duct still affects the performance of the ventilation system.
For efficient airflow, use the shortest practical duct route, minimise unnecessary bends and avoid leaving excessive compressed duct between components. Where a direction change is required, a gradual bend is preferable to a tightly folded section.
Fan performance should always be considered across the complete ventilation system, including the duct length, bends, filters, silencers, reducers and other fittings installed in the airflow path.
127mm (5") x 5m COMBI Ducting product details
| Product type | Reinforced flexible ventilation ducting |
|---|---|
| Nominal diameter | 127mm / 5" |
| Length | 5m |
| Duct type | Flexible |
| Primary purpose | Air extraction & intake ventilation |
| Compatible system size | Nominal 127mm / 5" round ventilation systems |
| Suitable connections | Compatible fans, filters, connectors, reducers & round ventilation fittings |
| Suitable applications | Controlled environment, propagation, nursery, growing area & general ventilation installations |
127mm (5") x 5m COMBI Ducting FAQs
What is COMBI ducting?
COMBI ducting is flexible ventilation ducting with a reinforced outer construction, providing a practical and robust way to connect ventilation equipment while retaining the flexibility needed for installation.
What diameter is this COMBI ducting?
This version has a nominal diameter of 127mm, commonly referred to as 5-inch ducting.
How long is the ducting?
This product is supplied as a 5 metre length.
Can COMBI ducting be used with a 5-inch extraction fan?
Yes, it can be used with compatible fans designed for nominal 127mm / 5" ventilation connections.
Can it connect to a carbon filter?
Yes. The ducting can be connected to a compatible 127mm carbon filter or to suitable adapters where different component sizes are being combined.
Can COMBI ducting be used for air intake?
Yes. It can be used for both extraction and intake applications within a compatible ventilation system.
Can I cut the 5m duct to a shorter length?
Yes. Flexible ducting can be cut to suit the installation, allowing the 5 metre length to be divided or shortened as required.
Do I need to use the full 5 metres?
No. Use only the length required. Keeping duct runs as short and direct as practical generally helps minimise resistance to airflow.
How should COMBI ducting be attached?
Fit the duct over a compatible connection and secure it with an appropriately sized ducting clip or clamp. HVAC foil tape can be added where further air sealing is required.
Can the ducting bend around obstacles?
Yes. Its flexible construction allows it to be routed around equipment and obstacles, although gradual bends are preferable to tight folds or sharp restrictions.
Do bends in flexible ducting reduce airflow?
Every duct system creates some resistance. Excessive duct length, tight bends and compressed sections can increase that resistance, so a direct and unrestricted route is preferable.
Can this ducting be used with reducers and connectors?
Yes. Compatible round connectors, reducers, elbows and other ventilation fittings can be incorporated into the duct system as required.
Should long sections of flexible ducting be supported?
Yes. Supporting longer sections can help prevent excessive sagging and keep the intended airflow route in place.
Is COMBI ducting the same as acoustic ducting?
No. COMBI ducting is primarily a reinforced flexible air duct. Acoustic ducting incorporates additional insulation specifically intended to help reduce the transmission of fan and airflow noise.
Is this suitable for horticultural ventilation?
Yes. It is suitable for compatible ventilation systems used in propagation, nursery and controlled growing environments, as well as general ventilation applications.
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