When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The old plastic "T" bleed screw was updated with a better one.
Not sure if the link I posted is that one or not, but it is a LR hose fitting all DII's.
That is the correct replacement hose that supercedes the old style.
Are you also replacing your t/stat, if not do it at the same time if it has never been changed.