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Andrews Gasket Secondary Heat Exchanger 7702400

Andrews

Andrews Gasket Secondary Heat Exchanger 7702400

Replacement gasket for the secondary heat exchanger on Andrews Fastflo water heaters.

At a glance

  • Also known as 1822990
Manufacturer part no.
7702400
Showing prices

£22.55

£18.79 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 Andrews 7702400 is a gasket for the secondary heat exchanger. It is manufactured by Andrews Water Heaters for use in their Fastflo range of water heaters. The gasket seals the joint at the secondary heat exchanger, preventing water leaks.

Signs this part needs replacing

  • Water weeping or dripping from the secondary heat exchanger joint
  • Visible hardening, cracking or flattening of the gasket
  • Corrosion or limescale staining around the heat exchanger connection
  • Unexplained loss of pressure in the heating circuit

Before you order

  • Check your appliance model against the fit list above
  • Confirm the gasket is for the secondary heat exchanger
  • Ensure the old gasket is removed and mating surfaces are clean before fitting

Not sure which part?

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