15x9x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack light Chemboys pH Up

Chemboys pH Up

and effectively

For use with 1000W and 600W HPS INTERLUX double ended lamp (and most other brands)

Easy access to the reservoir means you have a one-stop location for all feeding and water maintenance needs

Puffer Bottle - Puffer top allows easy application of boric acid dust anywhere crawling insects may enter or hide (windowsills

15x9x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack light Chemboys pH UpNordic Pure Custom MERV 13 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