Comparison : Item # 1135-024, PANTHER® 275 Gallon (gal) Capacity Classic Reel Medium/Heavy Duty Lightweight Double Wall Oil Dispense Piston Pump
Item # 1135-030, PANTHER® 400 Gallon (gal) Capacity Evolution Reel Medium/Heavy Duty Lightweight Double Wall Oil Dispense Piston Pump
Item # 1135-036, PANTHER® 400 Gallon (gal) Capacity Classic Reel Medium/Heavy Duty Lightweight Double Wall Oil Dispense Piston Pump
Item # 4140-072, 400 Gallon (gal) Capacity Lightweight Double Wall Oil Dispense Piston Pump