Overview Product Description CP-R1446 Circulator Pump Motor replace Armstrong number 816141-002 1725 rpm 115 v 1/3 h.p. bolt circle: 5.86"( 5 7/8 O.C.) 1/2" x 1/2" Shaft Diam. CCW shaft end for hot water boiler& booster pumps reversible Cross Reference: 816141-002 5ELN1 Product Videos Custom Field Product Reviews