Check the listing for details. 4 Roller Pump - Delavan RollerPRO® 4901C, 100 PSI, 9.2 GPM, CI, CW, 1/2". Condition: New. Listed at 147.74 USD. Delavan RollerPRO® 4901C Series 4-roller cast iron pump. Field Serviceable - saving precious time and money when you need to replace the rollers Features• Complete roller replacements takes about 3 minutes• To ensure the best performance for your investment, Delavan incorporates such features as “Ultra” rollers, heavy-duty sealed bearings, viton seal rings, stainless steel shafts and rotors, and close tolerance machining. All are standard Specifications• Type: 4-Roller design• Max. Flow: 9.2 GPM• Max Operating Speed: 2,600 RPM• Max Pressure: 100 PSI• Max Recommended Temperature: 140°F (60° C)• Port Size: 3/4” NPT (female)• Base Mounted: 5⁄16 -18 UNC-2B (2 holes)• PTO: Use torque bar and chain• Shaft Size: 1⁄2” hollow shaft• Rotation: CW (standard)• Housing: Cast Iron• Rollers: 1/2” Ultra rollers (standard)• Shaft Seals: Viton cartridge type lip seals• Seal Ring: Viton• Shaft & Rotor: Extra-fine finish 404 SST• Bearings: Permanently-lubricated, heavy-duty sealed bearings• Weight: 5 lbs >