Another new revolutionary product from RPM. This product not only replaces that dried out and ugly looking rubber brake booster line, but it does it with function and style. A direct swap, which includes a new polished aluminum check valve, stainless steel braided hose with chrome AN fittings and a special adaptor fitting that has a 1/8″ npt port for connection to your boost gauge. We also include the compression fittings to connect to your plastic boost gauge hose.