tech_support November 09, 2016 Yes, the R59681 Hygroscopic cap does fit the 5023 Series air vent, in fact the 5023 comes with a R59681. The large 501502A has a female 3/8" straight thread on top where a discharge tube can be connected, if needed. ReplyExpand Hide 1 Reply
Yes, the R59681 Hygroscopic cap does fit the 5023 Series air vent, in fact the 5023 comes with a R59681. The large 501502A has a female 3/8" straight thread on top where a discharge tube can be connected, if needed.