The Polyvent 665-Combi-M0 stands as the premium choice in flexible ducting, merging multi-layer structural integrity with absolute fire safety. It is constructed from a composite matrix consisting of layers of aluminum, polyester, and a rugged external white PVC jacket. The strict M0 certification (Non-combustible) guarantees that the ducting is entirely fireproof, making it ideal for indoor grow rooms and commercial facilities where fire prevention is a top priority. Its core is reinforced with a high-carbon steel wire helix, allowing the duct to maintain its circular profile without kinking, even when routed through sharp bends. The outer white PVC layer delivers exceptional resistance against tears and mechanical wear during installation, optimizes light reflection within the grow environment, and acts as a total light barrier ensuring complete light-tight performance.
Key Features:
- M0 Certification: Entirely non-combustible material that withstands extreme temperatures and prevents the spread of fireCombi
- Composite Structure: Multi-layer aluminum and polyester design shielded by an outer white PVC sleeve for maximum durabilityHigh
- Flexibility: Seamless installation in confined spaces with a minimal bending radius and zero cross-section lossLight-proof
- Design: Multi-layer construction guarantees 100% light-tight security internally and externallySteel
- Helix Reinforcement: Inner high-carbon steel wire spiral prevents compression and structural collapsing
Technical Specifications:
- Construction Material: Aluminum, Polyester, White PVC film
- Internal Spiral: High-carbon steel wire
- Fire Resistance Rating: M0 (Non-combustible)
Available Diameters: 102 mm / 127 mm / 152 mm / 162 mm / 203 mm / 254 mm / 315 mm - Duct Length (L): 10 m
- Operating Temperature Range: -30°C to +250°C
- Maximum Air Pressure: 2500 Pa
- Maximum Airflow Velocity: 30 m/s
Applications:
- Grow rooms and grow tents requiring strict fire safety and total light-proofing
- Connection of inline extractors to carbon filters and air-cooled reflectors (cool tubes)
- Central heating, ventilation, and air conditioning systems (HVAC)
- Hot air extraction in residential and industrial ventilation setups




