Ducting - PVC Coated - Multiple Size x 6m ufo-grow-lights PSI has been manufactured with

PSI has been manufactured with a new process that makes it 30% more effective than any other mono silicic acid products on the market and at a price that everyone can use and see amazing results

5") at widest setting

Versatile Use: Perfect for mixing with HPS lamps to enhance spectral diversity

External Control via 0 to 10V: Utilize the RJ11 sockets for precise light management

Ducting - PVC Coated - Multiple Size x 6m ufo-grow-lights PSI has been manufactured withTough and completely light proof PVC coated memory duct has the smallest corrugation profile and largest true inner diameter for maximum air flow and quiet air passage. All ducts come in 6 metre lengths. Sizes Available: 125mm x 6m 150mm x 6m 200mm x 6m 250mm x 6m 300mm x 6m