Many legacy pumps are discontinued. Newer bellows pumps offer better performance, improved reliability, extended pump life, and shorter lead times in similar sizes. Pump replacements are listed below, and comparison information is available on legacy pump webpages.
AP40EXT3 and PL60 pumps are not discontinued. Please visit the AP40EXT3泵 webpage for more information. Although PL60 has no direct replacement, PSA060 pumps are recommended upgrades. See comparisons on the PL系列泵 webpage.