Cap for return line

They dont. They do, but not for a permanent fix. They will fail.
Rubber hose and a ball bearing.

Hello All
Rubber hose made from rubber
Cap made from rubber
You choose your rubber
Eventually everything fails that is why we restore cars.
Happy Mopar :)
Arron

Color/Finish: Black
Inside Diameter: .14 In.; .22 In., .32in., .38 In., .21 In., .26 In.
Material: Rubber
Package Contents:
5/32" Cap, 7/32" Cap, 5/16" Cap , 3/8" Cap, 3/16" Caps, 1/4" Cap
Package Quantity: 30
Packaging Type: Tray