28x34x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack post harvest The pH readings are displayed

The pH readings are displayed with a 0

creating stable

Part #: PJ127MINI-H

2 RAW Phosphorus - 8 oz

while still providing an unparalleled completely natural source of nitrogen

28x34x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack post harvest The pH readings are displayedNordic 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