Hydro-Logic® Poly Tubing, Blue, 3/8in, 50ft Roll Fertilizer The probe surface is where

The probe surface is where the instrument takes the reading of the solution or soil/media

Act Bags Blackout Vacuum Sealer Bags are perfect for long term storage of food and perishables

Simply replace the old pack with a fresh one when the dot on the Replacement Indicator Card turns bright blue

Vitamin B1 (Thiamine) helps your plants use and create carbohydrates so your plants have enough energy to build strong vegetative growth and essential oils

A foliar or soil drench

Hydro-Logic® Poly Tubing, Blue, 3/8in, 50ft Roll Fertilizer The probe surface is whereReplacement tubing for Hydro logic products Also can be used for a variety of other irrigation and water purification applications.