(3VM VACUUM MANIFOLD FOR CT-500 BATH) With manual valves for applying vacuum or pressure to capillary-type viscometers. Designed for use with the Cannon DVR 1000 series Digital Vacuum Regulators and Cannon-Manning, Asphalt Institute, or Modified Koppers vacuum viscometers. Integral brackets permit mounting on Cannon bath covers. Two models are available: the 4VM has four valves and is intended for use with the CANNON CT-1000, CT-1000HT, and CT-2000 baths, and the 3VM has three valves and is intended for use with the CANNON CT-500/518 baths. Includes 10-foot length of rubber vacuum tubing, ¼-inch bore x 5/8-inch o.d., for connection to vacuum/ pressure regulator. Housing is epoxy-coated aluminum, overall 330 mm wide x 70 mm deep x 229 mm high (13 x 2.75 x 9 inches).