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The HI981421 GroLine Monitor for Hydroponic Nutrients provides around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrient solutions. Quick to setup, simple to use, this monitor was designed with Hydropon
$505.00 $159.42
Made with highly reflective textured aluminum and a heavy duty galvanized steel mounting bracket. Corners are rounded–no sharp corners unlike competitive gull-wing type reflectors. Reflector dimensions: 21-1/4 in long x 15 in wide x 4-1/2 in high. Prewire
$49.49 $9.83
The HI98318 is our latest pocket meter for measuring the EC/TDS of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98318 has a very large easy to read LCD displa
$85.00 $29.51
Emerald Harvest Sturdy Stalk Quart/0.95 Liter
Build up your plant cell walls and encourage productivity with Sturdy Stalk®, a potassium silicate supplement from Emerald Harvest®.
$41.48 $11.21
