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Andrews O-Ring S30 Type 1A Z355

Andrews

Andrews O-Ring S30 Type 1A Z355

Andrews O-ring, S30 Type 1A, manufacturer part number Z355, for use with Andrews water heaters.

At a glance

  • Part type: O-ring, S30 Type 1A
  • Also known as 1824200
Manufacturer part no.
Z355
Showing prices

£8.09

£6.74 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 O-ring S30 Type 1A is a sealing component for Andrews water heaters, supplied under manufacturer part number Z355. It provides a watertight seal at the joint where it is fitted, preventing leakage from the appliance's water circuit.

Signs this part needs replacing

  • Water weeping or dripping from the joint where the O-ring sits
  • Visible cracking, flattening or hardening of the ring
  • Scale or debris build-up on the sealing face
  • Leaks that return after the joint has been tightened

Before you order

  • Confirm your appliance model against the fitment list above
  • Check that part number Z355 matches the component being replaced
  • Inspect the old O-ring for its type markings before ordering

Not sure which part?

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