SIOUX
Sioux 844-02SL Drain Flr Clk Insd 2in CI 844 Enml Ctd
You will see that the F3SN-A0307P25-D-04 F3SN-A0307P25-L-04 has a 30-millimeter resolution for finger detection.
Sioux 832-4HNR Drain Flr 4in Hub PVC Adj 832
A nice touch with the SNK-P0068PS is the clear labeling on all parts.