The skuttle db 20 20 is an air cleaner system for the following applications. Most residential and light commercial hvac systems see hvac manual for correct compatible air cleaner size skuttle db 20 20 air cleaners are duct mounted high capacity air filters designed to provide high level air filtration for most residential and light commercial heating and air systems. Breathe cleaner air with odor reduction dust or allergy filters. 
				
			
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