11_1/2x11_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack water-filtration The C65 is a microprocessor-based

The C65 is a microprocessor-based conductivity tester with a rugged one-piece IP67 waterproof casing

Gun Safes: Prevent rust to guns and expensive ammunition and other damage caused by excess moisture

It can withstand high temperatures of up to 200°C (392°F) as well as ozone and other environmental phenomena

• 85% Noise Reduction Coefficient (NRC)—best on the market

Safe for use in gardens and around edible crops - just be sure to wash crops before eating

11_1/2x11_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack water-filtration The C65 is a microprocessor-basedNordic 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