23_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack sprayers-and-wands These clean-processed shoe covers provide

These clean-processed shoe covers provide superior protection against particulates and non-hazardous liquids

Compatible with most storage bags and scales

The Autopilot Dehumidifying Humidistat is a compact and easy-to-use controller for dehumidifiers and exhaust fans

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For use in hydroponic

23_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack sprayers-and-wands These clean-processed shoe covers provideNordic 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