Comparison : Item # 3C-090-M04-P, 1/2 Inch (in) Port Size Manual Drain Coalescing Low Flow Separator
Item # 3C-090-M06-P, 3/4 Inch (in) Port Size Manual Drain Coalescing Low Flow Separator
Item # 3C-090-M08-P, 1 Inch (in) Port Size Manual Drain Coalescing Low Flow Separator
Item # 3C-090-M04-F, 1/2 Inch (in) Port Size Automatic Drain Coalescing Low Flow Separator
Item # 3C-090-M06-F, 3/4 Inch (in) Port Size Automatic Drain Coalescing Low Flow Separator