Replaces: RBC18, Battery Cartridge #18 Compatible models: PS250, PS250I, PS450, PS450I, SC250RM1U, SC250RMI1U, SC450R1X542, SC450RM1U, SC450RMI1U Dimension: 4.0' L x 11.90' W x 1.40' H Weight: 5.7 LB Maintenance Free Sealed Lead-Acid Battery (leak proof) 18 Month Warranty Ships from the United States (USA) - Powerwarehouse is a USA based company