GMT Model Numbers:
- GMT045-3
- GMT045-3A
- GMT045-3B
- GMT070-3
- GMT070-3A
- GMT070-3B
- GMT070-4
- GMT070-4A
- GMT070-4B
- GMT090-3
- GMT090-3A
- GMT090-3B
- GMT090-4
- GMT090-4A
- GMT090-4B
- GMT090-5A
- GMT115-5
- GMT115-5A
- GMT115-5B
- GMT135-5
- GMT140-5
- GMT140-5A
- GMT140-5B
- GMT140-5D