11_1/2x11_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack water-filtration • 85% Noise Reduction Coefficient

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

Engine RPM Range: 1800 – 2000 RPM

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

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

The 315W single ended fixture delivers a remarkable PAR spectrum most closely equivalent to the deeply penetrative energy of the sun

11_1/2x11_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack water-filtration • 85% Noise Reduction CoefficientNordic 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