What is this valve?

[Florida2610D]

Really nice.

Yes, you need a disc harrow. A bottom plow does only 1/2 the work. The other 1/2 is the disc harrow. Or sell the bottom plow and get a PTO tiller.

This is the KK from TSC or FnF.
View attachment 705426

I have a 5 ft tiller and I love it, but what fun is plowing if you don't have a harrow?