(a picture is worth a 1000 words)

3 way 120V seloniod air valve, 1/4" NPT ports. Ports are labeled (1) for Input, (2) for outlet, (3) for exaust.
double acting cylinder
home depot regulator
home depot ice maker kit for 15ft of tubing
home depot shelf bracket, hose clamps not shown used to affix cylinder to bracket
home depot alum. angle stock
home depot 1/4" to quick disco for air hose (shown on regulator)
home depot 1/4" threaded to quick disco for plastic tubing (same section as the tubing in home depot)
home depot light switch
blue outlet box
scrap extension cord
scrap wood for base
use nylon insert nuts to ensure nothing can come lose