14x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack extension Supports Terpene and Resin Production

Supports Terpene and Resin Production

Nematodes reproduce inside the carcass and continue hunting new pests

for maximum energy efficiency

planting mixes and native soils

Hose Specifications

14x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack extension Supports Terpene and Resin ProductionNordic 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