Thanks for posting! Please take a look at our
81-304 and
81-307. I believe that both of these will fit the
81-236, though keep in mind that the
81-304 is a bit looser, while the
81-307 is tighter. Be careful not to damage the roller when installing the
81-307, and note the
81-304 tapers down to 3/16" on either end.