Armstrong D25248 Diaphragm Kit is a genuine Armstrong Fluid Technology replacement part for Armstrong diaphragm-type pumps. Some retailers list this kit as K-2133, linking D25248 to the main-diaphragm replacement category. This kit is intended to replace the diaphragm in Armstrong’s pump assemblies to support continued operation and proper seal compatibility. For exact fit, verify model compatibility via Armstrong’s official replacement parts resources or an authorized distributor.
