This is for Prep: 610-PO30-CS, 610-PO40-CS and 600-PO30-CS, 600-PO40-CS.

10 micron or 20 micron filter 0.188" dia., 9 µL Volume (10 micron) and 9.7 µL Volume (20 micron), Pack of 5, goes with 610-4025 for 610 series and 600-0001 for 600 series Inlet filter housings.

If you see more back pressure than you expected, then you may try the bigger porosity, 20 micron instead of 10 micron or 600-028-2-0, Inlet Straight thru hole fitting.

Notes: If you have 610-PO40-CS-1 with 5/16-24, 1/8" OD CPI port, then you need to order 610-4030 to go with 610-4025-1 housing.  If you have 610-PO40-CS-2 with 1/4-28 flat bottom for 1/8" OD tubing, then you need to order 610-4030 to go with 610-4025-2 housing.