Our 5-Star Premium Filters
Score a Knock-Out Punch in the
4 Critical Areas of GREEN Performance:

• Energy Savings
• Air Quality
• Waste Reduction
• Environmental Impact

30/30

“30/30®” is the first true MERV 8 (ASHRAE 52.2-2008)
prefilter. The 30/30 has very low initial resistance,
low maintained resistance to airflow, and the lowest
average pressure drop of any MERV 8 filter. It has
earned five stars on the ECI (Energy Cost Index) –
the best-possible performance ranking.