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Replaceable double junction pH probe is included
1 packet each pH 4
Use 2 - 4 pounds for 100 square feet of garden soil and make sure you follow application guidelines
Large LCD display
GH MaxiGro 50 lb
Can-Filter® Replacement Pre-Filter 125 down to earth Replaceable double junction pH probeVery low air resistance, easily changed. MERV 5 mesh blocks pollen, dust and other particulate from entering filter. Available in sizes for all filters. A clean Can Filter Pre Filter is an excellent way of extending the working life of your Can Filter filter.
US$ 51.99
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