25 springs

Fits most serial numbers in the following models:

90BL Benge  Bb Trumpet
B1103SP Bach  Euphonium
B1103 Bach  Euphonium
B1105TH Bach  Marching Mellophone
B1106S Bach  Marching Baritone
B1114 Bach  Baritone
B1110S Bach  Euphonium
B1110 Bach  Euphonium
B1105THS Bach  Marching Mellophone
B1106 Bach  Marching Baritone
TR300H2 Bach  Bb Trumpet
TR305 Bach  Bb Trumpet
TR305SBP Bach  Bb Trumpet
CR301H Bach  Cornet
TR300HS Bach  Bb Trumpet
TR300H2S Bach  Trumpet
TRSOL300H2 Bach  Trumpet
TROM300H2 Bach  Trumpet
TROM310 Bach  Trombone
90B Benge  Bb Trumpet
4PSP Benge  Piccolo Trumpet
4P Benge  Piccolo Trumpet
90C Benge  C Trumpet
3X Benge  Bb Trumpet
3XSP Benge  Bb Trumpet
52BSP Conn  Bb Trumpet
52J Conn  Tuba
52B Conn  Bb Trumpet
136ESP Conn  Marching Baritone
18I Conn  Baritone
14J Conn  Tuba
12I Conn  Baritone
134E Conn  Marching French Horn
134ESP Conn  Marching French Horn
14K Conn  Sousaphone
15I Conn  Baritone
136E Conn  Marching Baritone
15J Conn  Tuba
15JSP Conn  Tuba
14I Conn  Baritone
19I Conn  Euphonium
19ISP Conn  Euphonium
20KSB Conn  Sousaphone
20KSP Conn  Sousaphone
20K Conn  Sousaphone
1BSP Conn  Bb Trumpet
1B50CSP Conn  C Trumpet
1FR Conn  Flugelhorn
1FRSP Conn  Flugelhorn
1B50C Conn  C Trumpet
36K Conn  Sousaphone
51BSP Conn  C Trumpet
5J Conn  Tuba
51B Conn  C Trumpet
1B - Lacquer Conn  Bb Trumpet
12J Conn  Tuba
12JSP Conn  Tuba
22A Conn  Cornet
34A Conn  Cornet
35A Conn  Cornet
34ASP Conn  Cornet
23BN Conn  Bb Trumpet
23B Conn  Bb Trumpet
23BSP Conn  Bb Trumpet
27B Conn  Bb Trumpet
625 King  Baritone
625SP King  Baritone
B1104S King  Baritone
B1104 King  Baritone
2220SP King  Cornet
2266 King  Baritone
2266SP King  Baritone
2280 King  Euphonium
2280SP King  Euphonium
2220 King  Cornet
2166 King  Valve Trombone
1129 King  Marching Euphonium
1135 King  Tuba
1124 King  Marching Baritone
1127SP King  Marching Baritone
1129SP King  Marching Euphonium
1122SP King  Marching French Horn
1117 King  Bb Trumpet
1124SP King  Marching Baritone
1117SP King  Bb Trumpet
1121SP King  Marching Mellophone
1127 King  Marching Baritone
1121 King  Marching Mellophone
628 King  Euphonium
628SP King  Euphonium
2370 King  Sousaphone
1141 King  Marching Tuba
1122 King  Marching French Horn
1140 King  Tuba
2102PL - 2B+ (w/ brass outer slide tubes) King  Tenor Trombone
2055S - Silver Flair King  Bb Trumpet
1140SP King  Tuba
2102L - 2B Lightweight King  Tenor Trombone
2341 King  Tuba
2360 King  Sousaphone
623 King  Baritone
2340 King  Tuba
1140M King  Marching Tuba
1140MW King  Marching Tuba
2341 (Old Detachable Bell Version) King  Tuba
2341SP King  Tuba
B1111 King  Sousaphone
2020SP King  Flugelhorn
1141SP King  Marching Tuba
1529 King  Sousaphone
2350 King  Sousaphone
2020 King  Flugelhorn
603 King  Cornet
604 King  Cornet
602SP King  Cornet
301 King  Bb Trumpet
603SP King  Cornet
602 King  Cornet
605SP King  Cornet
605 King  Cornet
604W King  Cornet
600 King  Trumpet
601 King  Bb Trumpet
601SP King  Bb Trumpet
601N King  Bb Trumpet
627 King  Baritone