O Rings

[Graham Agri Enterprises]

Does anyone know the correct size of the o rings in the end caps of a 4x40 ro membrane pressure vessel ? I need the smaller ones that go over the stem on the membrane. Didn't find any on Amazon. Figured someone would sell a complete kit!! TIA

[Bricklayer]

I tried last year to find the right O ring. Was not successful. Came close. But then was doubting if it was sealing properly. So I just replaced the whole end cap. You can get them on Amazon.
Some come with the 3/4” feed 1/2” permeate and some are just all 1/2”.

[ronintank]

i will post the size in about an hour i have a couple spares i bought at gilroys hardware. u do it center

[Graham Agri Enterprises]

Thanks guys,I actually was able to solve my own problem. I went to the shop and matched it up with o rings out of my kit for hydraulics. These were black where as the originals were more of a opaque white color. Maple supplier offered the same thing a few days later. When its go time you do what you have to do!!!