15x19x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Garden Hygiene and Safety our Sorter allows you to

our Sorter allows you to exponentially speed up your sorting process while maintaining that fine quality your cultivation is known for

do double duty: They retain water

Soft start and acceleration

The HI98107 tester features a large multi level LCD which displays both pH and temperature readings simultaneously

Weight: 14

15x19x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Garden Hygiene and Safety our Sorter allows you toNordic 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