You can get a regulator and the filter lock at any place that deals with forklifts, I would think. Should be easy to do (this is your personal forklift, right?). Make sure you use sealer or Teflon tape on the pipe threads of the fittings. No need for sealer on the actual hose connection that has a flair in it. Be careful when you bleed out the LP gas from the hose as you take it apart (tank is shut off but still has gas in the hose). Then take a spray bottle of sudsy soap and make sure you don't have any leaks. Also turn the tank off when not in use.