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Andrews Anode-Mag Hex Head 7721568

Andrews

Andrews Anode-Mag Hex Head 7721568

Magnesium hex head anode, part 7721568, manufactured by Andrews for use in its water heaters.

At a glance

  • Also known as 1823378
Manufacturer part no.
7721568
Showing prices

£155.15

£129.29 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Anode-Mag Hex Head, part number 7721568, is a magnesium anode manufactured by Andrews for its water heaters. It is fitted to the cylinder to protect the vessel from corrosion, sacrificing itself in preference to the steel. The hex head allows the anode to be removed and refitted with a spanner during servicing.

Signs this part needs replacing

  • Hot water has a metallic or sulphur-like odour
  • Rusty or discoloured hot water at the taps
  • The anode is heavily consumed or coated when inspected
  • Corrosion or weeping at the cylinder connections

Before you order

  • Confirm your appliance model against the manufacturer's parts list
  • Check the head and thread of the existing anode match before removal
  • Drain and depressurise the cylinder before fitting
  • Check whether other cylinder spares are needed at the same time

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.