You get the Best of both worlds ,
1 ceramic Fupa#12 and 1 Glass Fupa #12 with orings for the Glass Version and 1 spare Diffuser
The cups will mount on a 45V44 gas lens or a 17 kit Please see the Identify page to determine your torch size
NOTE: the Diffusers in the cups are designed to work only with the Furickcup brand cups. We also recommend you buy a few spare diffusers to have, they are somewhat consumables and will eventually need to be replaced, The diffussers must be installed like you received them installed and must seal tightly around the cup or you will have poor results. They are designed to have a gap between the 2 layers of screens and it is recommended you install them back that way, It may take a few tries to get the screens in properly but have patience , The cupped side goes in first .