17_1/4x19_1/4x1 Exact MERV 7 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification The Xtrasun ballast in this

The Xtrasun ballast in this combo is our classic workhorse magnetic ballast

For Preventative Maintenance – Dilute 1/2 oz

Concentrated pH adjustment liquid

Clear Vinyl Tubing - (ID) 1/4" - (OD) 3/8" - 100 ft

17_1/4x19_1/4x1 Exact MERV 7 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification The Xtrasun ballast in thisNordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters