![Greenlee 646 EMT Piston, 3-1/2"](http://hausoftools.com/cdn/shop/products/616_3fa6c7ca-e625-47e6-a493-746202b83ed1_{width}x.png?v=1610388922)
Greenlee 646 EMT Piston, 3-1/2"
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- Use with blower or vacuum power fishing system to pioneer the line through the conduit run
- Flexible foam body for an air-tight seal
- Color-coded end disk with embossed size marking for fast easy selection
- Strong steel center rod with loops on both ends
- Pistons available for all types and sizes of conduit 1/2" - 6"