Oakton Replaceable Electrode for pH WP 2 Pen cloning-and-seed-starting just hook it up to

just hook it up to your standard household faucet and you're good to go

Highly reflective aluminum

They are shipped live and ready to destroy pests

Product dimensions 19” x 15

Oakton Replaceable Electrode for pH WP 2 Pen cloning-and-seed-starting just hook it up toThis part number is for a replacement electrode only, for your Oakton pH WP 2 pen (not the actual unit itself). Optimize nutrient strength during growth, flowering, and fruiting. Reliable waterproof, dustproof housing and replaceable electrode provide long life and value, meaning you won't need to invest in or calibrate another Oakton pen once you've become comfortable using yours. Replacement sensors: OK 35624 09 for pHTestr 1 OK 35624 29 for pHTestr