I have installed the Refiner unit on my truck.
2007 GMC Duramax, under hood mount with sandwich adapter #184.
3/8-1/8”NPT thread reducer x2.
10mm thread x 20mm long bolts for bracket x2.
10-1/2 feet hose required.
Photo one shows under hood mount next to a/c pump using 10mm holes, minor re-drill of bracket.
Photo 2 and 3 show Perma Cool sandwich adapter.
Photo 4 shows adapter installed.
Photo 5 shows adapter with filter.