The Model DU200 Series Fan is no longer for sale and has been replaced by newer series fans. To view Retrotec's current line of duct tester systems, CLICK HERE
Title 24, Canadian CGSB-149.1-2002 & SuperE, USA ASTM E 779-03, European EN 13829 & CEN, UK TM-23 Energy Standards. NFPA 2001—1, ISO 14520 and fire standards.
