21x21x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack water-pumps-&-irrigation-supplies This metalized plastic sheeting will

This metalized plastic sheeting will reflect about 98% of the light that hits it

Suitable to pump clear water containing particles with maximum diameter up to 1/4 in

Use beneficial nematodes to kill active maggots in and around manure piles

one side black (Black/Clear)

21x21x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack water-pumps-&-irrigation-supplies This metalized plastic sheeting willNordic 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