Laing LMB10150999 Rotor Repair Kit for 303 Series Circulators
Laing LMB10150999 Roto Repair Kit for 303 Series Circulators. For use with the old SM-303 circulators. The only moving part of this pump type is a spherical rotor/impeller unit which is suspended on an extremely wear resistant ceramic ball. Shaft seals or conventional bearing bushings with a shaft have been eliminated. The suspension on a ball eliminates any bearing play, even after years of use.
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