17_1/2x23_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack ventilation/air-conditioning resulting in greater crop turnover

resulting in greater crop turnover and overall productivity for the grower

while still providing an unparalleled completely natural source of nitrogen

Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses

* Adhesive/Sealant: LOCTITE 5510 (sold seperately)

planting mixes and native soils

17_1/2x23_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack ventilation/air-conditioning resulting in greater crop turnoverNordic Pure Custom MERV 14 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