http://www.harborfreight.com/cpi/cta...emnumber=42444
Brass
http://www.harborfreight.com/cpi/cta...temnumber=4873
Steel

Picture jamming the hose over the part of the coupling that normally is
the "Male" part of the quick release coupling.

Compare to:

http://tinyurl.com/6r8wg

although this may not the the exact equivalent size for the hose Bob is
using, you get the picture.