Quest MERV 13 Filter 18" X 20" X 2" for Quest 506, 506 277V, 746, and 876 king Listed diameter is measured from

Listed diameter is measured from the inside of the bottom of the saucer

Air Velocity: The ducting can handle a top air velocity of 25 mm/sec (4900 ft/min)

and GGS Controller: This affordable combination offers automatic control of the heater

You can stop relying on hand written data logs when you start using the HALO

RSG307AARS

Quest MERV 13 Filter 18" X 20" X 2" for Quest 506, 506 277V, 746, and 876 king Listed diameter is measured fromDescription Quest MERV 13 Filter 18" X 20" X 2" for Quest 506, 506 277V, 746, and 876: This superior MERV13 filter effectively removes harmful contaminants from the air such as dust, pollen, mold, bacteria, and certain viruses, aiding in the prevention of cross contamination and the promotion of healthier conditions. Proven to be 65% more effective in capturing dangerous particles from the air compared to MERV 8, it also outperforms MERV11 filters by