22x23x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting_accessories A seedling mat designed to

A seedling mat designed to improve germination success and accelerate your seeds’ growth process by emitting steady heat

freeing up additional nutritional sources

repeat in 1-3 weeks

which also increases the lifespan of the pump by stopping power to it when the water level gets too low

22x23x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting_accessories A seedling mat designed toNordic 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