111 is the number. .4375 ID and .09375 CS. Top one on first and second one over that. I use rubber grease but many use vaseline.
Is it the same size O-rings for both top and bottom?
What are the differences in material? what would be best? and what comes with a kit?The number is an industry standard for ID and Cross sectional area and is the same for any o-ring composition. You just specify a #111 o-ring made out of Viton
What are the differences in material? what would be best? and what comes with a kit?