Westwood Spiralink™ 10045 Circulator Coupling, Flexible Spring, For Use With: Taco® 121-138 Series In-Line Circulators, 1/4, 1/3, 1/2, 3/4 Circulator hp, CCW
- No wear points, lasts forever
- Silent, quiet and noise free
- Tolerates misaligned shafts in 3 dimensions
- Easy to install
- 1/2 Inch, 1/2 x 5/8 Inch and 5/8 Inch-shaft