Overview Product Description Circulator Pump Motor replace Armstrong CP-R1444 Replaces Armstrong number 816141-001 115 v 1/4h.p. for hot water boiler& booster pumps. single speed 1725 RPM reversible bolt circle:5.86"(57/8" O.C) CCW Rotation shaft end 1/2" x 1/2" shaft diam. Cross Reference: HW2024B, HW2024BL, 816141-001 Product Videos Custom Field Product Reviews