water pump Coupler Coupling Cast 118473 or PDZ12291 fits Bell & Gossett Series 60 and Armstrong 810120-003 fits H51, H52 Circulator Pumps. Proven Cast Iron construction with set screw and heavy duty springs 1/2" x 1/2" Yoke Style, Connects Motor and Bearing Assembly.
water pump Coupler Coupling Cast 118473 or PDZ12291 fits Bell & Gossett Series 60 and Armstrong 810120-003 fits H51, H52 Circulator Pumps.
Proven Cast Iron construction with set screw and heavy duty springs
1/2" x 1/2" Yoke Style, Connects Motor and Bearing Assembly.