Silver Aluminium Semi-Rigid Ducting

Silver Aluminium Semi-Rigid Ducting

A proper compromise between the strength of galvanised rigid duct and the versatility of cheap flexible duct — semi-rigid aluminium hose with no frame reinforcement but thicker-gauge aluminium that holds its shape better than standard flexible ducting. Can be twisted and bent around obstacles, but is stronger than typical aluminium flexible hose and handles higher working temperatures.

Why growers choose semi-rigid aluminium duct:

• Stronger than standard flexible duct — holds shape better, less prone to crushing or kinking
• More flexible than galvanised rigid duct — still bends around corners and obstacles
• Higher working temperature rating — suitable for runs close to hot HPS ballasts or heaters
• All-aluminium construction — no internal frame wires, no rust risk in humid grow rooms
• Good airflow characteristics — smooth internal surface, less turbulent than reinforced flex
• Middle-price-point solution — between cheap combi duct and expensive acoustic/galvanised

Who it's not for:

For the quietest operation, acoustic insulated ducting performs better. For permanent commercial installations, rigid galvanised steel spiral is more durable. Less flexible than standard combi ducting; if you need tight bends or complex routing, standard flex fits better.

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.