Description Manuals Videos Articles Clemco 23748 - In-Line Coalescent Air Filter This 200 CFM, 150 PSI, Auto drain air filter can be used with an upstream upstream air filter in high humidity environments. Fits 3/4" to 1-1/4" Piping Customers Also Viewed Filter, Coalescent, Hi-volume, 800 cfm #23108 $2,158.23 Filter Element (for 23748) #23749 $474.50 Clemco 1-1/2 inch Air Filter, Manual Drain #22363 $303.49