25x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack HPS Liquid pH adjuster with proprietary

Liquid pH adjuster with proprietary formulation that offers superior pH control

• 6” x 12” collection base

They feature unique

Introducing the Roi-E680 Horticulture LED System

Bulk case of 20 sheets

25x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack HPS Liquid pH adjuster with proprietaryNordic Pure Custom MERV 7 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