This set of used pumps was purchased from TSC and used to spray weed control chemicals Model D21X005B one is 1.8 gpm @ 60psi and the other is 2.1 gpm @ 60psi. They both work, though one has a loose housing that will need to be tightened. I think the thread is 1/2" npt. where the hose barbs screw into. Sold as is in working condition as pictured. They are about 8 yrs old if my memory serve me well.
Ships to continental US only.