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Alpha Return Pipe Filter 1.012489

Alpha

Alpha Return Pipe Filter 1.012489

Return pipe filter for the Alpha CB50 (LPG) gas boiler, part number 1.012489.

At a glance

  • Appliance family: Alpha CB50
  • Also known as RETURN-PIPE-FILTER-CB50, 1250046
Manufacturer part no.
1.012489
Showing prices

£1.61

£1.34 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 return pipe filter is a component fitted to the return pipework of the Alpha CB50 (LPG) gas boiler. It captures system debris before the water re-enters the boiler, helping to protect the heat exchanger and internal waterways from sludge and magnetite build-up. It is supplied by Alpha under part number 1.012489.

Signs this part needs replacing

  • Reduced heating or hot water performance as flow through the return path becomes restricted.
  • Boiler overheating or repeated overheat lockouts during operation.
  • Kettling, gurgling or rumbling noises from the heat exchanger.
  • Visible sludge, magnetite or scale collected on the filter when it is removed for inspection.
  • Frequent shutdowns or temperature fluctuations that persist after the system has been cleaned.

Before you order

  • Confirm the appliance is an Alpha CB50 (LPG) before ordering.
  • Check the part number 1.012489 against the manufacturer's parts list for your model.
  • Isolate the boiler and drain down the system before removing the filter.
  • Inspect the filter housing and surrounding pipework for damage while the filter is out.

Not sure which part?

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