whirlpool tub drain

[constructiondisaster]

Can anyone identify this tub drain for me? I am not familiar with it and can't find the correct brand/style in order to get the trims/controls for it. The house never had the trims installed by the builder and now I can't locate any because I don't recognize the design. The picture is taken from above looking down at the drain. The drain itself has what looks like a cable or some other linkage down inside it but I can't get a hold of it. There is a 3/8" threaded hole in the strainer plate. The control is a square post the rotates 90 degrees and raises and lowers the linkage down in the drain. There are no holes for mounting a cover plate. It doesn't look like any trip level or standard toe tap design that i have seen. It was installed 7 years ago.

Any help would be greatly appreciated.

 

[Matt30]

That waste/overflow has a cable. Your trim will act as a handle that you turn and it will lift the stopper up and down. OS&B I believe makes that style.

 

[Caduceus]

Looks like a Gerberit waste and overflow to me. They all do look very similar, though.

 

[constructiondisaster]

Thanks Caduceus. I got Gerberit trims and they worked perfectly. I appreciate the help.

CD