CPS Blackmax MBH4P5EZ Mechanical Manifold Gauge Set with 2 Valves. The CPS MBH4P5EZ is a BlackMax® Black & Chrome series 2 valve anodized aluminum block body with ¼" SAE 45° fittings, Triple SealT piston valves, easy-to-read 3 â. >" (80mm) Class 1.0 accuracy gauges, protective gauge boots, extra access port in the center with Schrader® valve, premium 5ft Pro-Set® Black & Chrome hoses with 45° anti-blowback valves on end and hanging hook. Some of our brands include: Aprilaire?