Toro TRX-15

Toro TRX-15 and TRX-19 walk-behind tracked trenchers have ground pressure as low as 4.1 psi, the company says, and trench up to 36 inches. Three controls operate all traction and trenching functions. Both the 15- and 19-horsepower models have 4-cycle, V-twin gasoline engines with a large oil reservoir for low engine temperatures.