[ARad]

try this company AliExpress have those type of plugs that are close to what you are looking to get - not sure what size you have as pictured.

https://r.search.yahoo.com/_ylt=Awr9NEnAdohffDAA.A.WnIlQ;_ylu=c2VjA2ZwLWF0dHJ pYgRzbGsDcnVybA--/RV=2/RE=1602807616/RO=11/RU=https%3a%2f%2fwww.aliexpress.com%2fstore%2fprod uct%2fsend-steel-pipe-protection-coat-head-cap-nozzle-sheath-pipe-sleeve-cap-The-blue-plastic-cover%2f2338194_32725752990.html/RK=2/RS=gMoKOymDTUDV6U6WKGUSiTlxktI-