IN-LINE TYPE; 21-1/2 INCH LENGTH X 16 INCH HEIGHT OVERALL DIMENSIONS; 115/230 VOLT, 200/230/460 VOLT AC AT 60 HERTZ 3 PHASE INPUT SUPPLY RATING; 10 TO 150 GPM FLOW RATE; NSF APPLICABLE STANDARD; RESIDENTIAL AND COMMERCIAL HYDRONIC SYSTEM APPLICATION; 300 DEG F TEMPERATURE RATING; CUPRO-NICKEL SHAFT SLEEVE INCLUSIONS/FEATURES; 175 PSI PRESSURE RATING; 1/2 HP POWER RATING; FLANGED X FLANGED END CONNECTION; 1 YEAR FROM DATE OF START-UP/18 MONTHS FROM DATE OF SHIPMENT WARRANTY; 1725 RPM SPEED RATING; ALLOY STEEL SHAFT MATERIAL; RUGGED, BUILT-IN OVERLOAD PROTECTOR MOTOR TYPE; 5 TO 38 FEET DISCHARGE HEAD; 3 INCH DISCHARGE SIZE; CAST IRON CASING MATERIAL; CAST IRON/BRONZE IMPELLER MATERIAL; 2-PIECE CARBON/CERAMIC FACE MECHANICAL SEAL SHAFT SEAL DETAILS; 3 INCH SUCTION SIZE; DYNAMICALLY AND HYDRAULICALLY BALANCED, ENCLOSED IMPELLER DESIGN; DRIVE COUPLING MATERIAL RUGGED, FLEXIBLE RUBBER; 121-138 MODEL