13_1/4x13_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack food-storage Hanna replacement EC electrode for

Hanna replacement EC electrode for pocket testers

Nitryx SP is a high concentration of proprietary beneficial bacteria on a 100% water soluble powder

(It is NOT recommended to foliar spray Kelp during bloom/flowering stages

General Hydroponics' CocoTek Coir is available in loose-fill bags and OMRI-certified Bricks and Blocks

208-277V Series

13_1/4x13_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack food-storage Hanna replacement EC electrode forNordic Pure Custom 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 condition