Hanna GroLine Tester Replacement Probe HGC728890 under a plant canopy

under a plant canopy

uncut and delivered at true professional strength concentrations

and will evenly mix throughout the water column

Net Weight: 19

Great for replenishing soil between grows in your raised bed

Hanna GroLine Tester Replacement Probe HGC728890 under a plant canopyThe HI73127 spare pH sensor makes electrode replacement quick and easy. The spare pH sensor is designed as an easy fit cartridge that locks into place, featuring two o rings to maintain a watertight seal. With no pins to line up or that can break, this sensor is ideal for quick replacements. Easy to replace. Extend the life of your Hanna pH tester with a spare pH sensor. Keep your pH measurements simple & accurate. Replacing a pH sensor on one of