21_1/2x23_5/16x1 MERV 7 AC Furnace Filters 6 Pack Meters & Solutions 45mm Round Form Factor –

45mm Round Form Factor – Compact circular design fits standard round jars

Use 1:1 Ratio with Master A&B as a two-part Base Bloom Nutrient

5-inch Folding Saw w/ABS Handle

BotryStop WP is effective against Gray Mold (Botrytis cinerea)

21_1/2x23_5/16x1 MERV 7 AC Furnace Filters 6 Pack Meters & Solutions 45mm Round Form Factor –Nordic 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