Hydrofarm Black & White Poly, 100' x 10', 5.5 mil Size & Thickness:10' x 100' - 4 Mil- Roll all you’ll see are healthy

all you’ll see are healthy

TDS Monitor - inbound & outbound water readings

Release Orius indoors or out

Hanna Instruments 1382ppm Solution is a TDS calibration solution standardized with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionized water for analytical use in accordance with ISO 3696/BS3978

Hydrofarm Black & White Poly, 100' x 10', 5.5 mil Size & Thickness:10' x 100' - 4 Mil- Roll all you’ll see are healthyThe white side is over 90% reflective for use on the walls and floor of your growing area to reflect light back to plants. The black side provides a light resistant partition. Features: Waterproof and tear resistant Use as is or cut to size Available sizes 10' x 25' 5. 5 Mil sheet 10' x 10' 5. 5Mil sheet 10' x 100' 4 Mil Roll 10' x 100' 5. 5 Mil Roll