21x27x1 Trane Replacement MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting-systems/kits Three dual ball-bearing exhaust fans

Three dual ball-bearing exhaust fans with PWM motors quietly expel heat (at a maximum of 33

Neutral pH of around 7

Aids in keeping digging mammals out of the treated area by limiting their food source

5in Matrix or the Micro Drip system to seamlessly automate your feed

Case Quantity = 5

21x27x1 Trane Replacement MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting-systems/kits Three dual ball-bearing exhaust fansNordic Pure Trane Replacement 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