15x19x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack plant-support Biodegradable Formula – Made with

Biodegradable Formula – Made with clove oil and other naturally derived ingredients that break down safely in the environment

Beneficial Microorganisms (nitrogen-fixing & composting bacteria)

quicker results

0-day PHI - Can be used up to and including the day of harvest

Our CMH 1000W fixtures are designed for commercial use and are suitable for vegetative and flowering purposes

15x19x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack plant-support Biodegradable Formula – Made withNordic Pure Custom MERV 14 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