Your search query on "SANDPIPER General Purpose Motors" returned the following results:

Warren Rupp IDEX Sandpiper ST1-A Double Diaphragm Pump DVG-4-A ST1A (TSC) (324914037385)

Sand Piper SA1-A, Type- TB-4-A, Air-Operated Diaphragm Pump. 100 PSI - USED (186115820601)