envelopelearning@mainstreamcorporation.com phone303-912-4833
Used for condensate drainage from the ERV unit.
_Zehnder_ComfoAir+200+ERV_Unit+with+pre-heater-80x80.jpg "ComfoAir 200 ERV Unit with pre-heater")
Mainstream Corporation is a Colorado based Passive House Design, Consulting firm. Specializing in Passive House Products for your building project.
