Their 1/4 inch, unless your working on a mini split, then their 5/16". The R410A cylinders are all 1/4". Just remember, the cylinder is on a 25 pound cylinder, not 30 like R22.
Yep, those are the ones I use.Thanks beenthere. I just need hoses with a ball valve instead low loss fittings.
This one here right?
http://www.yellowjacket.com/product/703