Description Overview Preparation set Make: Nsc Schlumberger First Passage Model: Gc15, model year 1996 Digital display 8 band input Can diameter 800 Second Passage Model: Gc15, model year 1996 Digital display 8 band input Can diameter 1000 Autoleveller Third Passage Model: Gc15, model year 1998 Digital display 10 band input Can diameter 700 Dual output Additional Information More information is available upon request