Is There A Cover or Cap For The Mounting Hole In The Escale Bath/Bubblemassage?

There is not a cover or cap for the mounting hole in the Escale bath and Bubblemassage. The Escale tub was designed with the hole; the hole is intended for the mounting of the fastener support of the K-18492 riser tubes.  Please review the installation instructions for the K-18492 Symbol Riser Tubes for reference.  If you are not using the KOHLER riser tubes, the hole will be exposed.