13_1/4x13_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Amendment The unique fungal blend in

The unique fungal blend in RootShield Plus WP provides 3 months of preventive control for Phytophthora

Activated by water flow for drain to waste cooling

Only use with EYE HORTILUX e-Ballasts

B-lite Premium 1940e new led light comes to bring more usable energy to your plants and within less power

13_1/4x13_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Amendment The unique fungal blend inNordic Pure Custom MERV 10 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