Model

YZ/EP-421

Key of Bb,
3 Top Action Piston Valves,
14.5mm (0.571") Bore,
280mm (11") Yellow Brass Bell,
Nickel Plated Brass Pistons,
Gold Lacquer.

YZ/EP-621

Professional Model,
Key of Bb,
3 Top & 1 Side Action Piston Valves,
14.5mm-16.8mm (0.571"-0.661") Bore,
280mm (11") Rose Brass Bell,
Rose Brass Leadpipe,
Genuine Mother-of-Pearl Finger Buttons,
Monel Pistons,
Gold Lacquer.

YZ/EP-621S (Silver Plated)

YZ/EP-821

Professional Model,
Key of Bb,
Full Compensating System,
3 Top & 1 Side Action Piston Valves,
15mm-16.8mm (0.591"-0.661") Bore,
300mm (11.8") Rose Brass Bell,
Rose Brass Leadpipe,
Genuine Mother-of-Pearl Finger Buttons,
Monel Pistons,
Gold Lacquer.

YZ/EP-821S (Silver Plated)