Schilke makes a wide variety and large number of stock mouthpieces, all of which are included the chart below. They are readily available and are remarkably inexpensive given their consistency and quality.
Model
mm
inches
Throat
Description
6A4a HVY
15.99
.630
27
"Heavyweight" Profile. A shallow 'A" cup with cushion #4 rim for extreme high register work.
13 HVY
16.89
.665
26
"Heavyweight" Profile. Ideal choice for a student or developing player with standard #3 rim contour. Rounder rim provides increased flexibility and quick response. "C" cup offers volume for tone.
13A4a HVY
16.76
.660
27
"Heavyweight" Profile. The shallow "A" cup, semi-flat #4 rim and tight "a" backbore creates an ideal lead mouthpiece.
14 HVY
17.02
.670
26
"Heavyweight" Profile. With a standard rim, cup and backbore, the 14 is an excellent choice for all around playing.
14A4a HVY
17.09
.673
27
"Heavyweight" Profile. One of the most popular mouthpieces, the 14A4a offers a shallow "A" cup, semi-flat #4 rim and tight "a" backbore allows a player a strong upper register without sacrificing tonal production.
15 HVY
17.12
.674
26
"Heavyweight" Profile. An excellent all-around mouthpiece which offers a free blowing, clear sound.
15A4a HVY
17.14
.675
27
"Heavyweight" Profile. A larger diameter mouthpiece with a shallow "A" cup and tight "a" backbore for upper register playing. #4 semi-flat rim offers comfort in upper register.
16C4 HVY
17.20
.677
26
"Heavyweight" Profile. Similar to the 16 in dimensions, this mouthpiece offers our #4 semi-flat rim for a more traditional feel and increased endurance.
17 HVY
17.33
.682
26
"Heavyweight" Profile. A compromise of all the medium characteristics, this mouthpiece is an excellent medium to large diameter mouthpiece.
18 HVY
17.52
.690
26
"Heavyweight" Profile. The high point being nearer to the center makes this mouthpiece feel smaller than it is. The standard characteristics produce a rich, brilliant tone.
20 HVY
17.78
.700
26
"Heavyweight" Profile. This large diameter is for the robust embouchure. Original mouthpiece of choice for Renold O. Schilke.