Thank you for your question on the model CV400 central vacuum system. The original and the new CV400 both use the model 391 (6 gallon) bags. You can get those bags through the “Shop for Parts” link at the top of our web site page. Use 391 in the “Search by Part Number” box. You can also order parts from our Customer Service at 888-336-3948.
Date published: 2015-07-31