Brass windmill cylinders. Most cylinders are open top. They range from 1-3/4" to 3-3/4" Plungers have either spool and ball type valves. Cylinders and valves with valves will be sold for $2.50/pound. Scrap cylinders and valves that are not paired with cylinders will be sold for $2.00/pound. some of the cylinders have steel bushings and some of the plungers still have leathers. These non brass parts will not be removed. Some of the cylinders are double action cylinders for those who would like to use smaller pipe for pumping. I do not have any leathers. Leathers can be found on line. I have rod guides for keeping the sucker rods centered in the pipe. $3 each.