– Chart – Handle Splines
| Law Supply | P&M | Danco | Kissler | Approx. Dia. | Used By |
|---|---|---|---|---|---|
| 12C | 11, 11A | 10, 23 | B-4 | 0.333″ | Crane (Dial-Ese), Kel-Win, Michigan Brass, Repcal |
| 12P | 1 | 21, 28, 15, 31 | B-6 | 0.380″ | Arrowhead Brass, Crane, Harcraft, Price-Pfister, Repcal |
| 12U | 14,14A | 16 | B-29 | 0.400″ | Arrowhead Brass, Bradley, Elkay, Federal-Huber, Grand Haven, Hodes, Milwaukee, Powers-Garvin, Rheem, Sears, Universal Rundle |
| 12X | — | — | 0.460″ | Crain (some PreWar stems) extra large | |
| 15S | — | 27 | B-14 | Michigan Brass, Savoy | |
| 16C | 4, 4A | 13, 22, 30 | B-12 | 0.380″ | American-Standard (Colony), Barns-Western, Burlington Brass, Central, Crane-Repcal, Eljer, Kohler, Milwaukee Faucet, Royal Brass, Youngstown |
| 16G | 9 | 11, 19 | B-18 | 0.360″ | Sayco, Gerber |
| 16M | — | 18 | Crosley, Mansfield, StreamWay, Youngstown | ||
| 16S | 3 | 24 | B-10 B-16 | 0.390″ | Barnes-Western, Dick Brothers, Hajoca, Rockwell, Schiable (O.S.), Sterling, Wolverine Brass |
| 17A | 13 | 14 | B-26 | American Brass, Briggs, Dishmaster, Mansfield, Nibco, Streamway | |
| 18U | 12, 12A | 12 | B-22 | Belvedere, Borg-Warner, Briggs, Indiana Brass, Rheem-Richmond, Union Brass, Union-Gopher, Wards | |
| 19K | 5, 5A | 25 | B-33 | Kohler | |
| 20A | — | 26 | B-37 | American-Standard (3/8″ Shank) | |
| 20S | 10 | 20 | B-20 | Speakman-Kent, T&S | |
| 22A | 2 | 17, 29 | B-8 | American Standard (Aquaseal – Tractline – Heritage – 7/16″ Shank) | |
| 32G | B-3 | Kohler, Grohe |
| Image | Law Supply | Used By |
|---|---|---|
 | B5D | Delta and Various Brands — Single Handle Valves — |
 | B7 | Delta and Various Brands — Single Handle Valves — |
 | B9M | Moen — 2 Handle Valves — |
| B9U | Universal Rundle — 2 Handle Valves — |
 | B13D | Delta, Delex, Peerless and Various Brands — 2 Handle Valves — |
| B13V | Valley — 2 Handle Valves — |
 | B19D | Delta, Delex, Peerless and Various Brands — Single Handle Valves — |
| B19M | Moen Single Handel Valves |
| B19U | Universal Rundle |
 | B25 | Chicago |
 | B42 | Price-Pfister |
 | B53 | Dominion |