Pay in 4 interest-free payments of $18.50 Learn more
Ships within 48 hours · Estimated delivery Sep 3 - Sep 8
Grodan Master is a special wet/dry slab
• Researched and patented
Easily sanitize as any hard-plastic product
Designed and manufactured in the USA
Nutrilife H2O2 (29%) makes it easy to increase oxygen levels around the root zone
HM Digital COM-100 Waterproof EC/TDS/Temp Combo Meter grow-light-ballasts Grodan Master is a specialIdeal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. The COM 100 is a professional level EC TDS meter at an unbeatable price. Measures electrical conductivity (EC), total dissolved solids (TDS), salinity and temperature. UPGRADED: Four scales: S, mS, ppm, ppt
US$ 26.00
US$ 45.00
US$ 1249.50
