HM Digital 1000 ppm NaCl Calibration Solution, 20 ml sachets, box of 20 nutrients-and-supplements The weather-resistant housing is tough

The weather-resistant housing is tough and durable for years of trouble-free use

Highly experienced gardeners designed the ultimate ratios of triple washed coco coir

Keep your plants from dying of heat stress or overheating once temperatures reach unacceptable levels

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The EcoPlus Elite Series Electronic Jet Pump is perfect for supplying water to domestic

HM Digital 1000 ppm NaCl Calibration Solution, 20 ml sachets, box of 20 nutrients-and-supplements The weather-resistant housing is toughFor optimal performance, re calibrate your meters periodically with a 20 ml pack of 1000ppm calibration solution.