Hello, This is a commercial grade blower rated for use with a much larger, commercial grade bouncer. This wouldn't fit a home use inflatable because the air tube is too small. The best blower for the Magic Castle Bounce House is our 480W Blower for Residential Bounce Houses up to 8x8. You can view/purchase the correct blower for the Magic Castle Bounce House here: http://www.blastzone.com/480w-blower-for-residential-bounce-houses-up-to-8x8 Sincerely, Blast Zone Support