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Navien Packing Air Supply Inlet Airtight 20006781A

Navien

Navien Packing Air Supply Inlet Airtight 20006781A

Airtight packing for the air supply inlet on Navien NCB-CE ERP system and combination boilers.

At a glance

  • Appliance family: NCB-CE ERP system and combination boilers
Manufacturer part no.
20006781A
Showing prices

£3.91

£3.26 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

This is an airtight packing for the air supply inlet, manufactured by Navien for use on NCB-CE ERP boilers. It forms the sealing component at the air supply inlet, helping to maintain an airtight joint on the appliance's combustion air path. It is supplied under part number 20006781A.

Signs this part needs replacing

  • Visible deterioration, cracking or flattening of the packing material
  • Air leakage or whistling at the air supply inlet
  • Combustion readings drifting outside the expected range for the appliance
  • Traces of moisture, soot or debris around the inlet joint
  • The packing is disturbed or damaged during servicing and will not reseat correctly

Before you order

  • Confirm the appliance model is an NCB-CE ERP unit and matches one of the fitments listed above
  • Check the part number on the existing component or against the manufacturer's parts list for your appliance
  • Inspect the inlet joint for any additional damaged seals or fixings that may also need attention
  • Verify the boiler's serial number against the appliance documentation before ordering

Not sure which part?

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