One of the oldest technologies in the marketplace today is the “Bubble Cap” Trays. They still continue to have several applications where they remain the best fit for the Job. Bubble Cap Trays remain an excellent defense mechanism against fouling and offer wide turndown ratios up to 20:1. SPI Process and Manufacturing can Manufacture and supply you with all sizes of bubble caps and assemblies from 2” to 6”. SPI Process and Manufacturing can Provide Bubble Cpas in most common materials such as Carbon Steel, 410SS, 304SS, and 316Lss.