Manuals Brands Emerson Manuals Regulators and Relief Valves Type 289RC Exhaust Booster Emerson Type 289RC Exhaust Booster | Page 2 Emerson Regulators and Relief Valves - Type 289RC Exhaust Booster. 1234 Download Page of 4 Go 4.6, 1874 votes Preview coming soon. Download manual right now. PREVNEXT 1234