23_1/4x29_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Nutrients and Supplements The inline connectors are 3/4

The inline connectors are 3/4 in FPT by 3/4 in FPT

5 x Matrix Circulator | 2 1/4"

NEW for 2018 is the OG DE1000W fixture

Its effectiveness on targeted insects and mites is based on the multiple modes of action it offers: it works as a suffocant on contact

and non-flammable gas

23_1/4x29_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Nutrients and Supplements The inline connectors are 3/4Nordic 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