JB Industries M2 Series Manifold with 2-1/2 In. Color-Coded Steel Case Gauges and Hose Set Breadcrumb Home / Products / Parts / Tools and Instruments / Manifolds and Accessories / Manifolds Loading... Customer Part Number: M2-6 Brand: JB Industries Scale: PSI Valves: 2 Refrigerant: R-12, R-22, R-502