Pumps
Water Pump Model
This hand operated model is designed for the study of pressure in fluids.  The up and down motion of the piston pumps water into the cylinder and pushes it out through the reservoir.
  No. SF250-MD.  Only $57.95
 
Hand Pump
This heavy duty hand pump is a combination of a pressure pump and a vacuum pump, specifically designs for physics labs to evacuate small amounts of air.  made of seamless metal pipe with a hardwood handle.  14" x 4" x 1.25"  Instruction manual included.
  No. SF250-PH.  Only $39.95