This is for 610-PO40-CS-1/-2 and 610-PO60-CS-1/-2.

PEEK 40 micron mesh screen, 0.250" dia., Pack of 5, goes with 610-4025-1 and 610-4025-2 Inlet filter housings.

Use the surface with groove up. See the third image for the assembled filter with housing.

Notes: If you have 610-PO60-CS, then you need to order 600-028-2-0.