Grow1 Black Vinyl Tubing I.D. 3/4'' x 100' Animal Feed LEDs: Fluence/Next light/Photobio

LEDs: Fluence/Next light/Photobio

and tannins

The pH sensing bulbs become less sensitive over time so make sure that you are calibrating reguarly to keep your PRO pH meter accurate

Horticultural vermiculite is permanent

Each pump's powerful mag drive construction includes removable foam filters

Grow1 Black Vinyl Tubing I.D. 3/4'' x 100' Animal Feed LEDs: Fluence/Next light/PhotobioGrow1 Black Vinyl Tubing I. D. 3 4'' x 100' Black Vinyl Tubing (ID) 3 4" (OD) 1" 100 ft Made from strong and durable vinyl material, these tubes are available in a variety of sizes and lengths, great for use with air or water. The tube walls are thick and flexible, and you may choose between the 100% opaque black vinyl, which prevents algae growth, or the clear vinyl that allow for complete visibility. Inner Dimensions: 3 4'' Outer Dimensions: 1''