Graco D55A11 Diaphragm Pump is a diaphragm-type pump from Graco. It uses PVDF construction and 1/2" NPT connections, aligning with common installation configurations for this class of pump. The unit is specified to deliver a flow rate from 15 to 57 gallons per minute, providing a mid-range capability for moderate-volume pumping tasks. The D55A11 designation identifies this specific model within Graco's catalog and highlights the PVDF material and 1/2" NPT interface.
