Pay in 4 interest-free payments of $27.75 Learn more
Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Apply every 7-10 days when insects are present or as needed to prevent further damage
Fits 8" ducting
Made in Germany and designed for usage in open luminaries
Good results have been seen even with continuous watering
Oakton Replacement Sensor for pHTestr 10/20/30 bloom nutrients Apply every 7-10 days whenExpand the lifetime of your Oakton pH tester by keeping these replacement sensors on hand. These pH testers work with Oakton's line of 10, 20, and 30 series pHTestrs (OK3563410, OK3563420, and OK3563430).
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