Chas The sandwich adapter is the one ERA uses for
oil coolers without the remote
oil filter. There are a number of sources, try Summitt, Jegs or call Fernando for one. The tank is mounted with the clamp/brackets from Accusump, bolted to some flat steel plates I worked up. My car is older and the cross in front of the engine is square tube, easy for me. The valve is mounted on a tee fitting, with the hose pointed up, together with the oilcooler return line. It all fits very close, if I did it again. I would consider moving it to the Accusump tank directly, but it is really ugly and green. Hope that helps.
Don