Tube Amp Doctor - Reverb Tanks

TYPE 4
An industry standard for years, Type 4 continues to be produced using Hammond's original design. It features four counter-wound, coupled springs that deliver superior mechanical performance and the classic sound that made Fender Twin Reverb Amps iconic.
Length: 42.5 cm - 2x2 springs.

TYPE 8
Tailored for situations where sound quality is paramount and a compact form factor is necessary. Despite its small size, this three-spring reverb unit nearly matches the rich textural quality of our larger units.
Length: 23.5 cm - 3 springs.

TYPE 9
Featuring six springs that are counter-wound, coupled, and arranged in parallel, this model produces Sound Enhancement's fullest and richest reverb effect across the entire range of musical sounds. It is especially well-suited for keyboards, sound reinforcement, and pedal steel applications.
Length: 42.5 cm - 3x2 springs.