Combi-Flex Flexible Ducting | Grow Room & HVAC Airflow Hose

Name: Combi-Flex Flexible Ducting | Grow Room & HVAC Airflow Hose
Brand: SteelRoots
SKU: CD100/4-05M
Price: 7.75 GBP
Availability: InStock

£7.75

Sale Sold out

Tax included. Shipping calculated at checkout.

Size: 100MM-4"

100MM-4" 125MM-5" 150MM-6" 200MM-8" 250MM-10" 315MM-12" 355MM-14"

Length: 5MTR

5MTR 10MTR

Quantity

Combi-Flex Multi-Layer Insulated Ducting – The Heavy-Duty Choice for Flawless Ventilation

Take complete control over your indoor climate with Combi-Flex Multi-Layer Insulated Ducting. Engineered specifically for high-demand environments, this premium flexible hose bridges the gap between fragile single-layer foil and bulky acoustic ducting. Whether you are managing heat in a commercial HVAC layout or setting up high-power extractor fans in a hydroponic grow room, Combi-Flex delivers the ultimate combination of strength, flexibility, and airflow efficiency.

Built to withstand tough conditions, this multi-layer hose features a core of high-tensile steel wire encapsulated by heavy-duty laminated aluminum and an outer protective PVC jacket. The result is a tough, lightproof, and tear-resistant air channel that will not kink, crush, or degrade under negative pressure.

Key Product Benefits

1. Multi-Layer Protection & Extreme Durability

Rip-Resistant PVC Jacket: The rugged outer PVC layer shields the inner aluminum core from sharp objects, tight corners, and friction, preventing micro-tears that compromise air pressure.
No Pin-Hole Leaks: Multiple layers of lamination ensure a 100% airtight seal, preventing stale air, odors, or heat from escaping into unwanted areas.

2. Advanced Lightproof & Acoustic Properties

Total Light Blackout: Zero light can penetrate the thick multi-layer wall, making it ideal for photoperiod-sensitive setups like indoor grow rooms.
Noise Dampening: The thick composite materials absorb airflow vibrations much better than standard single-ply foil ducting, helping to lower the overall decibel output of your inline fans.

3. High Heat & Chemical Resistance

Handles Extreme Temp Spikes: Built to comfortably channel both freezing fresh intake air and hot, humid exhaust air without cracking or deteriorating.
Condensation Barrier: The insulated layering reduces the temperature gradient between the inside and outside of the hose, drastically cutting down on moisture and condensation buildup.

4. Easy Installation & Flexible Routing

Anti-Kink Structure: The encapsulated spring-steel wire frame lets you make tight 90-degree turns and navigate awkward ceiling voids without collapsing the inner diameter or choking your fan’s CFM output.
Simple Tool Fitting: Cuts cleanly with basic wire cutters and snips, slipping easily onto extraction fans, carbon filters, or air-cooled reflectors.

Technical Specifications

Inner Material: Laminated Aluminum / Polyester Film
Outer Material: Heavy-Duty PVC (Polyvinyl Chloride) Jacket
Internal Support: High-Tensile Encapsulated Steel Wire Helix
Compatibility: Fits all standard circular inline extractor fans, carbon filters, and air ventilation grilles.

Combi-Flex Ducting Size Guide

Duct Diameter (Metric)	Duct Diameter (Imperial)	Best Suited For (Fan Size)	Typical Application	Recommended Clamp Size
100 mm	4 Inch	Small 4" Axial / Inline Fans	Closet Grows / Micro Tents	90 - 110 mm
125 mm	5 Inch	Medium 5" Inline Extractors	1m x 1m Grow Tents / Small HVAC	110 - 130 mm
150 mm	6 Inch	High-Power 6" Inline Fans	1.2m x 1.2m Tents / CoolTubes	140 - 160 mm
200 mm	8 Inch	Heavy-Duty 8" Exhaust Fans	Large Grow Rooms / Commercial HVAC	190 - 210 mm
250 mm	10 Inch	Industrial 10" Intake & Outtake	Multi-Light Rooms / Main HVAC Branches	240 - 260 mm
315 mm	12 Inch	Large-Scale 12" Extraction	Commercial Ventilation / Sealed Rooms	300 - 325 mm