17x25x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack rock-bottom Hydrofarm's T5 replacement tubes offer

Hydrofarm's T5 replacement tubes offer HO light at a great price

DERIVED FROM:Ammonium sulphate

Medium Rate - 2-3 tsp/1

CenturionPro Mini Brush

17x25x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack rock-bottom Hydrofarm's T5 replacement tubes offerNordic Pure Custom MERV 7 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