8x18x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack fans-ventilation-ducting and improved stabilization

and improved stabilization

8 x Matrix Circulator | 2 1/4"

Both does both functions—on delay and overtemperature protection

The ducting can be shortened by cutting the tube to fit various applications

The SUNMASTER 315W FULL NOVA lamp delivers the industry’s most balanced growth spectrum while producing an enhanced amount of blue and red energy to support robust vegetative growth and flowering

8x18x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack fans-ventilation-ducting and improved stabilizationNordic 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