HI
Here is what I used and seem to be acceptable to those I refered to.
http://www.usplastic.com/catalog/ite...3885&catid=926
I used the first and third listing 60464 and 60466 for my torch and cooler hoses. The cooler hoses were 1/4" ID and 3/8" OD
also the clamps I used are on ebay type in this auction number to see them 160240743219 and auction number 150211757636 for the cooler hoses
I also used them on the pressure gauge so I could install/remove it easly.
have fun
Tom