21_1/4x21_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Water Filtration Contains formulation of 2-0-0 NPK

Contains formulation of 2-0-0 NPK

This is a Mini Machine Plastic Lid replacement for our compact CenturionPro model

Strawberry Fields Fruiting & Flowering Potting Soil is brought to you directly from the Flower Children of the Sixties and Seventies—the Old School generation

Carefully clean for reuse

21_1/4x21_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Water Filtration Contains formulation of 2-0-0 NPKNordic Pure Custom MERV 13 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition