You will need a regulator, recommend an auto switch over by Marshall Brass.
Two high pressure hoses to go between the tanks and the regulator. Length will need to be determined by your installation.
A low pressure hose to go from regulator to the rig. Length to be determined by your installation.
A brass adapter to go from the rig's black iron pipe to the low pressure hose. You need to determine the size of the rig's pipe. Don't forget to get some yellow Teflon tape for the connection to the iron pipe.
You should think about the tank foot to go under the tanks to stabilize them.
No, I could not see the picture. I made a sketch in my head!
Bud
USAF Retired
Pace Arrow
2003 Chev Ice Road Tracker