Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Altecnic DiscalSlim Deaerator 551806

Altecnic

Altecnic DiscalSlim Deaerator 551806

Altecnic DiscalSlim deaerator with a 1" F BSP compression connection for removing air from heating systems.

Manufacturer part no.
551806
Showing prices

£246.80

£205.67 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 Altecnic DiscalSlim deaerator is an air separation device for use in heating systems. It connects via a 1" F BSP compression fitting and removes trapped air from the circulating water. The slim body allows it to be installed where space around the pipework is limited.

Signs this part needs replacing

  • Persistent gurgling or air noise from the pipework or boiler
  • Radiators that need bleeding repeatedly
  • Cold spots at the top of radiators despite correct balancing
  • Boiler kettling or reduced heat output linked to air in the system
  • Air bubbles or pressure loss with no visible leak

Before you order

  • Confirm the connection is 1" F BSP compression and matches the pipework or fitting it will join
  • Check there is enough clearance for the slim body of the unit
  • Confirm the installation position is suitable for an air separation device
  • Verify the SKU 551806 against the existing unit

Not sure which part?

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