Galvanized Steel Airtight Duct Collar - 100MM / 150MM / 200MM / 250MM / 300MM / 350MM / 400MM insulated-ductings making it a go-to solution

making it a go-to solution for professional and hobbyist growers alike

Iso-Max is a totally unique diagonal tube fan designed to be efficient

Whether you're aiming to warm multiple bedrooms

This 6-metres length of 25mm thick polyester ducting features an R0

Galvanized Steel Airtight Duct Collar - 100MM / 150MM / 200MM / 250MM / 300MM / 350MM / 400MM insulated-ductings making it a go-to solutionQuick solution for easily connecting your ducting to your wall, floor or ceiling opening. Galvanized steel body. Ducting Opening Diameter: 100MM (4" Inch) 150MM (6" Inch) 200MM (8" Inch) 250MM (10" Inch) 300MM (12" Inch) 350MM (14" Inch) 400MM (16" Inch)