Black Combi Duct 127mm (5") — 2.5m Dual-Layer Light-Tight

Black Combi Duct 127mm (5") — 2.5m Dual-Layer Light-Tight Construction

Sourced from Europe, our Black Combi Ducting is strong and reliable with robust hard-wearing outer casing — purposely designed in black to prevent light reflection through the ducting. Dual-layer construction with aluminium inner and plastic outer greatly increases tear resistance while preventing light leaks. The 127mm (5") diameter sits between 4" and 6" — useful for specific fan/filter combinations.

Why growers choose 5" Black Combi:

• 127mm (5") diameter — fits 5" fan and filter setups specifically
• 2.5m practical length — enough for short runs or repair work
• Black outer prevents light reflection — no light leaks through ducting
• Dual-layer construction — aluminium inner + plastic outer
• Strong tear resistance — survives years of grow-room use
• European sourced — quality construction, not budget import stock
• Light-tight for sealed dark cycles — proper photoperiod discipline

Who it's not for:

5" is a less common UK home-grow size — most setups use 4", 6", or 8". Confirm your fan and filter are 5" before ordering — wrong diameter won't fit. For longer runs, 5m or 10m roll lengths are better value than multiple 2.5m sections. For acoustic noise reduction, RAM Sonoduct delivers better noise control at higher cost.

In stock now — ships same working day from our Staffordshire warehouse with free UK delivery over £100. Pick up in-store at our Stone shop (ST15 0SR) if you're local, or click & collect at checkout.