15x19x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements This durable and high quality

This durable and high quality 4"

High 92 CRI

Size: 8in x 9

Nutrilife H2O2 (29%) makes it easy to increase oxygen levels around the root zone

Their roots can’t seek out nutrition in the ground

15x19x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements This durable and high qualityNordic 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