The Russell ProClassic II -4 AN hose on a 3-foot roll offers a nylon outer braid with stainless-steel underbraid over a CPE synthetic rubber core for improved durability and a higher pressure rating (around 390 psi as noted). It supports a range of Russell hose-end options and is meant for builders who want an easily assembled, reinforced braided hose compatible with available black anodized or blue-finish fittings.
Russell Performance -4 AN ProClassic II Black Hose (Pre-Packaged 3 Foot Roll)