Share this:FacebookTwitterEmailPinterestLinkedInExercise 220 – Guanshu LuEx. 220 JaeMunKim Comments (1) jaekim October 27, 2015 at 9:51 pm I really like your model. Is your model 500 square foot? It is really amazing Pingbacks list Join the discussion, leave a reply! Cancel comment Comment Name Email Website Notify me of follow-up comments by email. Notify me of new posts by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.