17x19x1 Exact MERV 13 AC Furnace Filters 12 Pack Trimmers Root Radiance seedling heat mat

Root Radiance seedling heat mat warms root area 10 to 20 degrees over ambient temperature

Safe to beneficial or large insects such as bees

Used to turn on equipment from other power circuit

optimized root growth

This enables it to grip your ducting with an airtight seal in either a horizontal or vertical orientation

17x19x1 Exact MERV 13 AC Furnace Filters 12 Pack Trimmers Root Radiance seedling heat matNordic Pure MERV 13 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200