The Blackmax Black and Chrome Manifold Series, No. MAID8QZ, from CPS Products, includes a new triple-seal piston valve system. With a three super-neoprene o-ring design, the back-seating o-rings seals the valve nut when fully open. Other features include a non-flutter gauge, rugged chrome metal housing, a front calibrating access port and 8' non-permeating hoses. The tool comes in a collector's edition tin case.