22x23x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_hrg * SunPulse lamps are also

* SunPulse lamps are also available for 600W magnetic ballasts in the various colors

The Xtrasun DE 240V ballast features rugged build quality

or similarly

with recessed contacts to ensure safety during plug-in

Directions for use: Use with every watering throughout the Vegetative phase and weeks 1-3 of the Flowering phase

22x23x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_hrg * SunPulse lamps are alsoNordic Pure Custom MERV 12 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