28x36x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack HPS and replaceable

and replaceable

Hydrofarm's Mini Sunburst reflector comes with all that you need to get growing at a price that just can't be beat

600 S Series ® 178 81

Paenibacillus polymyxa (HYKP1)

The granulate is prilled for easy mixing

28x36x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack HPS and replaceableNordic 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