TWO WAY AIR FILTER WITH DRAIN COCK size 1/ 2 inch x1/ 2 inch complete with sintered bronze filter element ( 50 micron ) for WSF type equipment for EMU/ MEMU SPEC./ DRG NO- AS PER DRG NO- ER/ KPA/ EL/ PN. 3HE. 2300 H. specn: NITRIL rubber for rubber items.