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Xtra versatile—works with most fixtures
They feature improved grooves at the base to promote better drainage
The longest RAY family member at 66″
covers a 2 ft x 4 ft veg footprint and eliminates the need to ever change a bulb again
When used weekly as a foliar spray throughout the vegetative cycle and into the first week of flowering
Oakton Replaceable Electrode for pH WP 2 Pen cloning-and-seed-starting Xtra versatile—works with most fixturesThis 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
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