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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Stops Pipe and Valve Freeze Down to -40°F
dissolves directly and is extremely suitable for growing with recirculating hydroponic systems
and Magnesium Nitrate
Optimal microclimate on crop level
swimming pools
Apera Instruments GroStar GS3 EC Pen Mylar & Reflective Coverings Stops Pipe and Valve FreezeLab grade instruments designed specifically for growers! The GS3 EC Pen includes: 2. 77 EC calibration solution (50 ml bottle) Measures conductivity EC, PPM (500), PPM (700) and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Titanium alloy sensor designed for high accuracy EC measurement Easy to use design and fast calibration adjustment Large 3 color backlit screen gives you clear
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