G.A.S Silver Aluminium DuctingG.A.S Silver Aluminium Ducting is the traditional, cost-effective style of ducting used by growers all over the world. Its flexible steel helix makes a strong and long-lasting crimp resistant duct for your grow room.This no-fuss ducting is ideal for all ventilation systems and comes in two different sizes— 5 metres and 10 metres— of between 102mm and 355mm in diameter.Why buy?A great choice for novice or hobbyists who don’t need to fork out for expensive equipmentIts flexible, crimp-resistant materials mean this ducting is long-lastingAirtight design to avoid odour leaksTop Tip: Aluminium Duct Tape is the durable and long-lasting go-to product for repairing or sealing duct joints. Suitable for all ducting.