Product guide

GEWA 720486 Trombone-to-Baritone Mouthpiece Adapter

Trombone-to-Baritone: The GEWA 720486 mouthpiece adapter is listed for fitting a trombone mouthpiece with a small shank to a baritone with a wide mouthpiece receiver. Its listed dimensions are useful for checking fit, but confirm compatibility with your instrument before buying.

At a glance

Designed to adapt a small-shank trombone mouthpiece for a baritone with a wide mouthpiece receiver.
The listing gives receiver and mouthpiece diameter ranges plus an adapter length for fit checks.
Manufacturer feature text describes brass with a nickel-plated surface.

Price

£9.60Save 16%

Reference price: ~~£11.47~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Can let players use a familiar small-shank trombone mouthpiece on a compatible baritone instead of buying another mouthpiece.
Published dimensions give useful measurements to compare with the instrument and mouthpiece.

Technical specifications

8 specifications

Identity
Brand	GEWA
Model	720486

Dimensions and installation
Weight listed	0.01 Kilograms
Receiver outside diameter range	12.0 mm to 13.3 mm
Mouthpiece inside diameter range	10.5 mm to 12.3 mm
Length	40.7 mm

Materials and finish
Material listed	Brass
Surface finish	nickel-plated

What to know before buying

Listing details to confirm

Confirm the baritone receiver and mouthpiece dimensions against the listed ranges before ordering. The listed colour is silver, while the product title and feature text describe nickel-plated brass. The contents field says “Mouthpiece” although the product is presented as an adapter, so the exact included item is unclear. The stated warranty is “No.”

What’s in the box

MouthpieceCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Baritone players whose instrument has a wide mouthpiece receiver and who want to use a compatible small-shank trombone mouthpiece.
Students comparing instruments who prefer to keep using a familiar mouthpiece, subject to fit.

Less suited to

Buyers who need a complete baritone mouthpiece rather than an adapter.
Players whose instrument or mouthpiece dimensions fall outside the listed ranges.

Customer reviews on Amazon

3.7 / 5 · 32 ratings

5 stars55%55%
4 stars11%11%
3 stars8%8%
2 stars3%3%
1 star23%23%

Aggregate customer ratings are mixed, with five-star ratings the largest category but a notable one-star share. This does not explain why people rated it that way. For a fit-specific adapter, confirm the dimensions and package contents rather than treating the ratings as evidence of compatibility.

Frequently asked questions

What does this adapter do?

The listing says it allows a small-shank trombone mouthpiece to be used with a baritone that has a wide mouthpiece receiver.

What dimensions should I check?

The listed receiver outside diameter range is 12.0 mm to 13.3 mm, the mouthpiece inside diameter range is 10.5 mm to 12.3 mm, and the adapter length is 40.7 mm. Compare these with your instrument and mouthpiece.

Is a mouthpiece included?

The listing's included-components field says “Mouthpiece”, but the product is presented as an adapter. Confirm the selected listing's package contents before purchase.