15x9x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Water Pumps & Irrigation Supplies Use with undiluted Bluelab pH

Use with undiluted Bluelab pH Up or Down

• Product contains mercury—please dispose of properly in accordance with local disposal laws

it’s that good

(1) Outlet Tester

Can be used in conjunction with our float valve

15x9x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Water Pumps & Irrigation Supplies Use with undiluted Bluelab pHNordic Pure Custom MERV 8 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