Best place to get 3 way dump valve

[Valair1]

I'm wanting to do a 3 way dump valve on my puller, any suggestions on where to get it?

 

[jimdmax]

Got mine here took no time.
Shut Off Valves

 

[cummins2getu]

Same place I got mine.

 

[dieselpolaris]

Mcmaster carr has apollo 3 way ball valves. Relatively cheap and work great