21x23_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-light-reflectors • Automatic sun or electric

• Automatic sun or electric light calibration modes ensure accurate readings no matter the source

The Orcon Grub Control (7 million) (GC-R7M) are microorganisms that contains beneficial nematodes

It comes with a T-splitter and an additional water detector in order to have multiple points to detect water by using a single WD-1 module

With its easy

Anthracnose (Colletotrichum trifolii)

21x23_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-light-reflectors • Automatic sun or electricNordic 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