21_1/4x21_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Travel Bags & Backpacks *SIZE: 43x30x10

*SIZE: 43x30x10

Allow flowers to dry until outer leaves easily flake off when gently rubbed

VERSATILE AND REUSABLE – Trays are multi-purpose and can be used in indoor gardening

• High pressure probe

21_1/4x21_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Travel Bags & Backpacks *SIZE: 43x30x10Nordic Pure Custom MERV 8 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