Law      P&M         Danco         Used By
---    ------      ---------     ---------------

12C    11 & 11A    10 & 23      Crane (Dial-Ese), Kel-Win, Michigan Brass, Repcal
                                -- aprox. 0.333" Dia. --

12P       1        21 & 28 &    Arrowhead Brass, Crane, Harcraft, Price-Pfister,
                   15 & 31      Repcal
                                -- aprox. 0.380" Dia. --

12U    14 & 14A      16         Arrowhead Brass, Bradley, Elkay, Federal-Huber,
                                Grand Haven, Hodes, Milwaukee, Powers-Garvin,
                                Rheem, Sears, Universal Rundle
                                -- aprox. 0.400" Dia. --

12X       -           -         Crain (some PreWar stems) extra large
                                -- aprox. 0.460" Dia. --

15S       -          27         Michigan Brass, Savoy

16C     4 & 4A     13 & 22 &    American-Standard (Colony), Barns-Western,
                     30         Burlington Brass, Central, Crane-Repcal, Eljer,
                                Kohler, Milwaukee Faucet, Royal Brass, Youngstown

16G       9        11 & 19      Sayco, Gerber

16M       -          18         Crosley, Mansfield, StreamWay, Youngstown

16S       3          24         Barnes-Western, Dick Brothers, Hajoca, Rockwell,
                                Schiable (O.S.), Sterling, Wolverine Brass
 
17A      13          14         American Brass, Briggs, Dishmaster, Mansfield,
                                Nibco, Streamway

18U    12 & 12A      12         Belvedere, Borg-Warner, Briggs, Indiana Brass,
                                Rheem-Richmond, Union Brass, Union-Gopher, Wards

19K     5 & 5A       25         Kohler

20A       -          26         American-Standard (3/8" Shank)

20S      10          20         Speakman-Kent, T&S

22A       2        17 & 29      American Standerd
                                (Aquaseal - Tractline - Heritage - 7/16" Shank)

32G       -           -         Kohler, Grohe