22x29x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack grow-light-bulbs Designed to prolong bulb life

Designed to prolong bulb life and preserve light quality

easing air flow adjustment and allowing better balancing of the ventilation system

increasing your yield 50% or more compared with old blurple and HPS lights

Comes with a 6 ft 120 V power cord

22x29x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack grow-light-bulbs Designed to prolong bulb lifeNordic 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