GC1 pump replaces GC1-01 pump.
GC5 pump replaces GC5-05 and GC4 pumps.

Heavy duty design
Mechanical seal for extended seal life
Opposed ports for hose connection
Rear support bushing for load absorption
Ball bearing supported drive shaft
Neoprene impeller and Buna seal standard
Stainless steel shaft

GC1 and GC5 Pumps:
Inlet Port: 1-1/2"
Outlet Port: 1-1/2"
Impeller Kit: 15000K
Minor Repair Kit: 23980
Major Repair Kit: 23981