16x28x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers 12-site complete system

12-site complete system

*A control unit and reservoir (sold separately) are required to use this expansion pack

BotryStop poses no threat to living tissue

Lithium ion (Li-ion) batteries are an awesome technology constantly improving and that is why they are very expensive

pickleworm

16x28x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers 12-site complete systemNordic 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