15_1/2x29x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack HVAC & HOME VENTILATION Breaks down scale - Keeps

Breaks down scale - Keeps irrigation systems in pristine condition

The combination of KIND Base and Grow provides the ideal nitrogen to potassium ratios for fast flowering annuals

It effectively transfers the waste from the tumbler into the collector bag

The Hanna Instruments HI98107 pHep pH tester is a rugged and reliable pocket-sized tester for use in the lab or field

15_1/2x29x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack HVAC & HOME VENTILATION Breaks down scale - KeepsNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition