Tuba Mouthpiece Comparisons-2
Monette 94 - Laskey 30H -  Perantucci PT-88 & PT-50+

Laskey 30H - 32.89mm Rim ID - .8.204mm throat

Perantucci PT-88  - 33.5mm Rim ID - 8.1mm throat

Perantucci PT-50+  - 33mm Rim ID - .8.3mm throat