Description
Richards, Die-cast, white metal body with integrally cast side arm, plated Brass nozzle; cast aluminum baffle tube. 3/8 in. (1/2 in. drain, 1/8 in. NPT vacuum) Water Inlet, 7 in. (178 mm) Length. Humboldt Aspirator Filter Pumps offer excellent performance for vacuum filtrations under both high and low water pressure conditions. The pumps feature a ball-type, positive-action valve in the suction tube which prevents water backflow if the pressure is reduced. Supports ASTM D4 standards.
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