Hydraulic Hose...

I need to work on a cylinder and I want to get a couple of caps and plugs for the hoses and cylinder fittings when I remove them...

I must be brain-dead...but what frigg'n size do I need to buy for a fitting that takes an 11/16" wrench? These are on the back of my JD 210LE. Just stock JD stuff...I'm thinking #4 AN (or is it JIC??)...would it be 1/4" hose?

THANKS!

Hydraulic Hose...