Evolution® RST-Driver
Greater cow comfort. Greater performance.
- Innovative, transitional barrel design
- Engineered for high speed, low slip and better comfort
- Extensively tested in independent trials
- Service life – 2,500 cow milkings*
*Based on optimal washing conditions; may vary.
Product | Barrel Shape | Product Code |
---|---|---|
Conewango RST-Driver Vented Liner | Transitional | RST140N-V |
Conewango RST-Driver Non-Vented Liner | Transitional | RST140N |

Drive performance in the milking parlor with the RST-Driver, engineered for high speed, low slip, and easy use. This innovative liner features a transitional barrel shape to minimize mouthpiece vacuum and non-round advantages for optimal teat-end health.
Vented models move milk away from the teat end with a redesigned clog-free vent and new vent seat for improved retention. Crafted from high-performance rubber and used with a custom-molded nylon shell, the RST-Driver is lightweight and extremely durable, ensuring a good fit and secure seal.
Its unique barrel geometry mimics the natural shape and motion of a suckling calf, enhancing cow comfort and milking performance. Extensively tested and proven, the RST-Driver outperforms leading competitive liners, delivering uncompromised performance for every milking.

Curious how the RST-Driver stacks up? We put it to the test against leading competitor liners and it delivered faster milk flow, shorter milking times, and higher milk yield. Explore the trial data and see how the RST-Driver can boost your parlor’s performance.