22x30x1 MERV 13 AC Furnace Filters 6 Pack ventilation Connectable for variable lengths

Connectable for variable lengths

Use this method and place your cuttings back in the tray/insert for 48-72 hours

Easy assembly with custom press-in fasteners

• PumpGuard should be used annually or for heavier fish loads

as liquefaction of these plant parts will give a false reading

22x30x1 MERV 13 AC Furnace Filters 6 Pack ventilation Connectable for variable lengthsNordic 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