17_1/8x26_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack ventilation expanded volcanic rock

expanded volcanic rock

80 x PotPro™ | Platform

These parasites attack California red scale

Connect to existing ventilation system to distribute throughout room or air exhaust system

Our premium concentrated pH Up offers a clean formula for growers needing to safely increase the pH levels in their garden

17_1/8x26_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack ventilation expanded volcanic rockNordic Pure Custom MERV 13 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