ThermoFlo Premium Duct 6" x 25' soilless They have a light spectrum

They have a light spectrum shifted towards the red making them ideal during the flowering stage of growth with added blue spectrum for vegetative growth efficiency

Easy to clean thanks to the titanium coating

Galvanized spring steel helix maintains duct shape and prevents rust

removing the sticker on the lid

Grodan rockwool is known for its quality

ThermoFlo Premium Duct 6" x 25' soilless They have a light spectrumBenefits 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