1) Regulator 3000psi/100psi for Ar/CO2 bottle 2) Rotameter for flow control 3) I-pieces quick connect plastic for 1/4 inch piping x10 4) T-pieces quick connect plastic for 1/4 inch piping x3 5) Plastic hose 1/4 inch 6) Oscilloscope with probe and cable 7) HV power supply Bertran NIM Bin 8) Mini NIM bin 9) Low Voltage DC laboratory power supply 10) Cable with connectors for LV supply on preamps 11) Preamp cards for wires and cathode strips 12) Bubbler