The trade often calls WEIL PUMP the HEAVYWEIGHT. All Weil pumps consistently OUTWEIGH and OUTLAST similar pumps. This difference is by design to make the best. The result is a distortion-free part with high rigidity, consistent machined dimensions, and a longer service life due to increased wall dimensions.
Air-filled, submersible motors are the only design with worldwide engineering acceptance. Weil makes only air-filled, submersible motors. The cost is higher. The end result is better.