ThermoFlo Premium Duct 8" x 25' fan Complies with NFPA standard 90A

Complies with NFPA standard 90A & 90B

and miticide controls powdery mildew

A-Ok Starter Plugs™ are for starting seeds and rooting cuttings prior to plugging into larger Gro-Blocks™

Convenient and quick installation will help reduce costs

ThermoFlo Premium Duct 8" x 25' fan Complies with NFPA standard 90ABenefits of ThermoFlo Premium Duct Manufactured with triple foil laminate industrial grade casing & double sealed core prevents punctures Reinforced with Rip Stop to eliminate tearing and unraveling Industrial grade woven fiberglass core reduces noise Galvanized spring steel helix maintains duct shape and prevents rust Duct components are flame resistant and self extinguishing Can withstand high humidity and high heat without duct failure Over sized