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Taco 1/2 x 1/2" Cast Iron Circulator Pump Coupler
Part 621004
Brand Taco
Free Shipping
in lower 48 states
Next-day delivery*
Hassle-free returns

About this item

  • 4 Spring Cast Iron Circulator Pump Coupler
  • 1/2 x 1/2"
  • Replaces B&G 118705, 189100, 118712 And PZ4291
  • Rugged, Cast Zinc With Steel Reinforced Eyelets To Increase Life Of Coupler
  • Heavy-Duty Spring
  • Fits All 0.5" Motor Shafts
  • Standard Woods 3-J For All 0.625" Motor Shafts
  • Pro-Fit™ Heavy-Duty Spring Couplers Eliminate Multiple Inventory, With Reinforced Eyelets, One Coupler Fits All Pumps With 0.5" Motor Shafts, Reinforced Eyelets Are Designed For Improved Performance And Extended Life
  • Mfg #COU-ABC-100
California residents: Prop 65 Warnings


This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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