Arnotap

Budget-friendly 4-in-1 challenger at under £500.

Arno (trading as Arnotap.com) is a UK challenger that captured market share with a value-focused 4-in-1 at under £500. It is a newer brand with a small UK review base, and owner feedback on Trustpilot is mixed, with customer-service responsiveness the most common complaint. Standard 3-year warranty.

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Arno Square 4-in-1

Best-value 4-in-1 of 2026

From: £499
Boiling: 98°C
Tank: 2.4 L
Warranty: 3 yr

· 98°C near-boiling
· Filtered water
· Chilled water
· 4-in-1 design

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