13_1/4x13_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack food-storage the Original Can-Filters provide excellent

the Original Can-Filters provide excellent value and confidence

Gold Label Hydrocorn and Coco is an ideal match for high water capacity

Hanna replacement EC electrode for pocket testers

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

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

13_1/4x13_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack food-storage the Original Can-Filters provide excellentNordic 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