boilingwatertap.

Model vs model

Arno Square 4-in-1
vs Franke Instante

The Arno Square 4-in-1 lists at £499, £251 less than the Franke Instante at £750.

Every number below comes from the manufacturers' own specification sheets. We highlight which tap leads on each spec; what matters most for your kitchen is your call.

Arno Square 4-in-1 chrome instant boiling water tap with digital touch screen

Arnotap

Arno Square 4-in-1

Best-value 4-in-1 of 2026

Typical price: £499

Full review →
Franke Instante 4-in-1 boiling water tap

Franke

Franke Instante

Franke's current 4-in-1: boiling, filtered, hot and cold

Typical price: £750

Full review →

The differences at a glance

  • The Arno Square 4-in-1 lists at £499, £251 less than the Franke Instante at £750.
  • The Franke Instante dispenses at 100°C; the Arno Square 4-in-1 tops out at 98°C.
  • Tank capacity: 4 L on the Franke Instante versus 2.4 L on the Arno Square 4-in-1. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Franke Instante ships with a 5-year warranty; the Arno Square 4-in-1 with a 3-year warranty.

Full specification, side by side

Sourced from manufacturer datasheets. A tick marks the better number on specs where more or less is objectively better.

Arno Square 4-in-1 vs Franke Instante specifications from manufacturer datasheets
SpecArno Square 4-in-1Franke Instante
Typical price£499£750
Boiling temperature98°C100°C
Tank capacity2.4 L4 L
Idle power11 W-
Peak power1500 W-
Flow rate--
Filtered waterYesYes
Sparkling waterNoNo
Chilled waterNoNo
Filter type2-stage filter: PP cotton + activated carbon block-
Finishes42
Warranty3 years5 years
Released2023-

Strengths and trade-offs

Arno Square 4-in-1

What we like

  • £499 RRP delivers 4-in-1 cheaper than most rivals
  • 2-stage filtration removes chlorine and heavy metals
  • 360° swivel spout handles pot-filling and rinsing
  • Child-safe spring-loaded boiling dispense as standard

Watch out for

  • 98°C ceiling not true 100°C boiling
  • 2.4L tank yields only 7-8 cups before recovery
  • Limited independent reviews outside Arno marketing
  • Newer brand lacks long-term UK reliability track record

Franke Instante

What we like

  • Current Franke 4-in-1: boiling, filtered, hot and cold from one tap
  • Built-in filtration and tank included, no separate module needed
  • Genuine 100°C boiling water
  • 5-year manufacturer guarantee, longer than most rivals

Watch out for

  • Filtered cold water, not actively chilled
  • Narrow finish range at launch
  • Newer model with a thinner independent-review record than the Omni it replaces