Pay in 4 interest-free payments of $2.88 Learn more
Ships within 48 hours · Estimated delivery Sep 28 - Oct 3
This premium formula offers a traditional PK (phosphorus and potassium) spike
always follow the recommended usage rates and dilution instructions provided
75" Quantity per Retail Box 144 packets Boxes per Case 4 Total per Case 576 packets Individual Overwrap Yes — each packet sealed until opened Humidity Indicator Card Included — one card per packet
12x AQUAvalve5
BlueLab Calibration Solution - 4.0 pH expand This premium formula offers aThe Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH meters, pH monitors and controllers. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. Bluelab's EC CF equipment does not need calibrating, as they are all factory
