Aeroflow through frame fittings are specifically designed for running fluid lines such as fuel or oil through chassis rails. This makes it perfect for use on low vehicles with minimum ground clearance or you are after a clean install of fluidtransfer lines. These bulkheads are to suit 60.2mm (2-3/8") thick frame rails. Each bulkhead requires 27mm hole to be drilled if fitting through a chassis rails. They feature a -8ORB female thread on the inside ofthe bulkhead and a -8ORB male fitting on the outside. Made from 6061-T6 aluminium, anodized black and sold individually.