ThermoFlo Premium Duct 4" x 25' micro Neoprene damper seal minimizes leakage

Neoprene damper seal minimizes leakage

Combined with high-quality fibrous peat moss

Adjust the pump's flow to get things moving at your preferred rate

Cover: Flat

Enhanced micronutrients provide optimal nutrition for strong roots and green foliage

ThermoFlo Premium Duct 4" x 25' micro Neoprene damper seal minimizes leakageBenefits 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