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ComputersDeal Water-Heater Expansion Tanks

2 products available · Updated August 2026

1 active deal
Parent: Water Heater Accessories
All (110,834)Water Heater Stacks (3)Water-Heater Expansion Tanks (2)

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Compact black metal enclosure with a perforated front panel, featuring the Sonnet logo, designed for Thunderbolt 3 connectivity and expansion.

Sonnet

Sonnet Echo Express SE IIIe Thunderbolt Expansion System

£725.73

up to £869.15

5 offers
Black metal housing Ethernet adapter with dual Thunderbolt ports, labeled "TWIN25G" and two silver SFP28 transceivers on either side, designed for high-speed 25Gb connectivity.

Sonnet

Sonnet Twin25G Internal Fiber 25000 Mbit/s

£545.97

up to £642.07

5 offers
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