17_1/2x23_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack ventilation/air-conditioning scoop your product to the

scoop your product to the pre-measured fill line

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

It is critical that plants not only get sufficient nutrients but also in the appropriate ratio

It is designed specifically for high PPFD cultivation practices in vertical farming

while still providing an unparalleled completely natural source of nitrogen

17_1/2x23_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack ventilation/air-conditioning scoop your product to theNordic 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