Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Potterton CAP G3/4 INCH 94950143

Potterton

Potterton CAP G3/4 INCH 94950143

Potterton G3/4 inch cap, part number 94950143, for Sirius 2 FS Cascade KIT commercial boilers.

At a glance

  • Appliance family: Sirius 2 FS Cascade KIT
Manufacturer part no.
94950143
Showing prices

£8.16

£6.80 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 CAP G3/4 INCH is a threaded cap supplied by Potterton for use on Potterton Commercial Sirius 2 FS Cascade KIT boilers. It is identified by part number 94950143 and provides a G3/4 inch threaded closure on the appliance. It is a component-level spare intended for service and repair work on the listed commercial cascade installations.

Signs this part needs replacing

  • Visible weeping or seepage from the capped connection during operation
  • Thread damage or cross-threading that prevents the cap seating correctly
  • Corrosion or scaling on the cap body or threads
  • The cap is missing or has been left off after service work
  • The cap will not tighten down and hold against system pressure

Before you order

  • Confirm the thread size required is G3/4 inch, as marked on the existing cap or connection
  • Check the boiler model against the fit list above
  • Inspect the mating thread on the appliance for damage before fitting a replacement cap
  • Confirm whether any sealing washer or jointing method used on the original connection is still serviceable

Not sure which part?

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