Ten tons of hydraulic pressure expand the pipe quickly for a perfect fit. Works with all sizes of pipe from 1 5/8" up to 4 1/4" diameter. Great for installing catalytic converters or for making your own custom exhaust system, pipe will not spin. It's very strong and easy to use, highly recommend.This is a great tool! Specifications: Model: 78835 Length of Hose: 4 Feet Pressure: 10T Pipe Size: 1-5/8" to 4-1/4" Expander Size: 1 5/8" - 1 7/8", 2" - 2 1/2", 2 3/8"- 2 3/4", 2 3/4" - 3 1/8", 3 1/8" - 3 1/2", 3 1/2" - 3 7/8", 3 7/8" - 4 1/4" exhaust pipe expander,hydraulic system,10 T .
eBay