• Enhances metabolism
to a maximum of 8 per single power cord
Water saving polymers save water and the leaching of nutrients
Derived from Bat Guano
Hydrofarm's Raptor reflectors were designed with our customers' needs in mind
HM Digital COM-100 Waterproof EC/TDS/Temp Combo Meter eligible-for-discount • Enhances metabolismIdeal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. The COM 100 is a professional level EC TDS meter at an unbeatable price. Measures electrical conductivity (EC), total dissolved solids (TDS), salinity and temperature. UPGRADED: Four scales: S, mS, ppm, ppt