Quick Release for DC

[rjwolfe3]

EDIT- Found it.

Does anyone know if there is a quick release for 4" hoses for a DC system? I am thinking of making my DC truly portable until I can afford a permanent one.

EDIT: Ooops, guess I should have googled it first, just found one at Grizzly for $10.
http://grizzly.amazonwebstore.com/Grizzly-G6163-434-Industrial-Dust-Collection/M/B0000DD51E.htm