Black White Poly, 10' x 10', 5.5 mil Water Pumps Aeration & Irrigation For calibration of pH meters

For calibration of pH meters at pH 4

Sunshine Advanced Mix #4 is meticulously formulated to meet the needs of professional growers

Getting The Results You Demand

It is powered by three standard AA batteries

Black White Poly, 10' x 10', 5.5 mil Water Pumps Aeration & Irrigation For calibration of pH metersGet double the grow room assistance with this waterproof alternative to metalized film. Unroll this two sided film and custom fit your indoor garden, eliminating concerns over whether you've got afternoon facing light or a climate that supports your preferred greenery. Use the white side for walls and floors, taking advantage of the material's 90 percent reflectivity. When you want to block out light and sun, use the light resistant black side. Adding