The Lily Injecti-Port I (P-235) fits into a 1/2" diameter hole. It is used when a surface is too irregular to allow the use of a surface mounted port, or when a hole must be drilled to penetrate below contaminates that might prevent penetration of epoxy from a surface mounted port.
The Injecti Port I withstands injection pressures of 900 psi.and for this reason is frequently used to inject polyurethane resins in 1/2” diameter holes. A Setting Tool (P-317), is used to drive the adapter into its hole, setting it so tightly that no epoxy paste is needed to secure it.