21x23_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-light-reflectors The Orcon Grub Control (7

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

Anthracnose (Colletotrichum trifolii)

plus trace minerals to meet all your plants’ needs

Pockets of nutrients and water in the soil which were once unreachable by standard root systems are now made accessible through the "super-mining" effects which mycorrhizae gift to your plants

Root Rot Treatments (Pythium sp

21x23_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-light-reflectors The Orcon Grub Control (7Nordic 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