Using your Furick Fupa #12 Ceramic and Glass Cup with Cover Kit is easy. First, make sure your torch is a 45V44 or Furick 17 kit. If you have a Furick 17 torch, you may need to install the Furick adapter kit. When choosing a torch, if you have a #9 or #20, go for a brand - name 45V44 for better results. This kit is for DC applications only, and don't use it with more than 200 non - continuance amps. Also, make sure to use a 3/32 - 2.4mm tungsten size. As for maintenance, keep the cups clean and dry. After use, check the O - rings and the diffuser screen. Replace the spare parts when they show signs of wear. Store the kit in a cool, dry place to keep it in good condition.