We're working on gathering information on Parduba mouthpieces and expect to have some more information soon.

Parduba Standard Trumpet Mouthpieces
Model No. Throat
mm		 Approx. Cup Dia. Depth of Cup Description
0 No.27
3.66
1
1.5
2
2.5
3 No.28
3.57
3.5
4
4.5
4.5 HJ No.27
3.66
5
5.5
5.5 HJ
6 No.27
3.66
6.5
7
7.5
8
H