This is a liquid to liquid filter which has a drain port. This is mostly used for Diesel application. The Water and High surface tension liquid do not pass through the mem- brane and it goes out through the drain. Only Diesel pass through the filter.

   End Connections
Service Application Max Press in Bar Max Temp 0 in C Filter Element Inlet Outlet Drain
Hydrocarbon Liquid Liquid Separation from Liquid HC stream 30 150 Customer Scope            1/4" NPTF 1/4" OD