Baxi
Baxi Caps & Plugs CAP 23 Open & O-Ring 720872801
Baxi CAP 23 open cap with O-ring, part number 720872801, for compatible Baxi gas boiler models.
Showing prices
£9.00
£7.50 ex. VAT · VAT at 20%
Available to order · 7 working days
Available to order · 7 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 Baxi CAP 23 Open & O-Ring (part number 720872801) is a cap and plug component classed under Caps & Plugs for Baxi gas boilers. It is supplied with an O-ring to provide a seal at the point of fitting. It is listed in the Gas Boiler Spares range.
Before you order
- Check your boiler model and serial number against the fitment list above, as several models are listed with serial number variants.
- Confirm the model and serial number of your appliance before ordering.
- If you are unsure of compatibility, refer to the Baxi appliance documentation or a registered heating engineer.
Compliance
| GC number | H90-465 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-25 | 47-077-25 | — | — |
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-25 | 47-077-25 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-26 | 47-077-26 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-26 | 47-077-26 | — | — |
| BAXI DUO-TEC 2 COMBI 28 COMPACT | 47-075-72 | 47-075-72 | — | — |
| BAXI ECOBLUE COMBI 24 | 47-075-81 | 47-075-81 | — | — |
| BAXI ECOBLUE COMBI 28 | 47-075-82 | 47-075-82 | — | — |
| BAXI ECOBLUE COMBI 33 | 47-075-83 | 47-075-83 | — | — |
| BAXI ECOBLUE COMBI ErP 24 | 47-077-11 | 47-077-11 | — | — |
| BAXI ECOBLUE COMBI ErP 28 | 47-077-12 | 47-077-12 | — | — |
Showing 10 of 48 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
manual
BAXI appliance manual — 124 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-25), 124 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-25), 128 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-26), 128 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-26)
manualmanualBAXI appliance manual — DUO-TEC 2 COMBI 28 COMPACT (GC 47-075-72)
manualmanualBAXI appliance manual — ECOBLUE COMBI 24 (GC 47-075-81), ECOBLUE COMBI 28 (GC 47-075-82), ECOBLUE COMBI 33 (GC 47-075-83)
manualmanualBAXI appliance manual — ECOBLUE COMBI ErP 24 (GC 47-077-11), ECOBLUE COMBI ErP 28 (GC 47-077-12), ECOBLUE COMBI ErP 33 (GC 47-077-13)
manualmanualBAXI appliance manual — ECOBLUE PLUS COMBI 24 (GC 47-075-84), ECOBLUE PLUS COMBI 28 (GC 47-075-85), ECOBLUE PLUS COMBI 33 (GC 47-075-86)
manualmanualBAXI appliance manual — ECOBLUE PLUS COMBI ErP 24 (GC 47-077-08), ECOBLUE PLUS COMBI ErP 28 (GC 47-077-09), ECOBLUE PLUS COMBI ErP 33 (GC 47-077-10)
manualmanualBAXI appliance manual — ECOBLUE SYSTEM 12 (GC 41-077-95), ECOBLUE SYSTEM 15 (GC 41-077-96), ECOBLUE SYSTEM 18 (GC 41-077-97), ECOBLUE SYSTEM 24 (GC 41-077-98), ECOBLUE SYSTEM 28 (GC 41-077-99), ECOBLUE SYSTEM 32 (GC 41-470-01)
manualmanualBAXI appliance manual — ECOBLUE SYSTEM ErP 12 (GC 41-470-23), ECOBLUE SYSTEM ErP 15 (GC 41-470-24), ECOBLUE SYSTEM ErP 18 (GC 41-470-25), ECOBLUE SYSTEM ErP 24 (GC 41-470-26), ECOBLUE SYSTEM ErP 28 (GC 41-470-27), ECOBLUE SYSTEM ErP 32 (GC 41-470-28)
manualmanualBAXI appliance manual — MEGAFLO 2 SYSTEM 12 COMPACT GA (GC 41-075-70), MEGAFLO 2 SYSTEM 15 COMPACT GA (GC 41-075-71), MEGAFLO 2 SYSTEM 18 COMPACT GA (GC 41-075-72), MEGAFLO 2 SYSTEM 24 COMPACT GA (GC 41-075-73), MEGAFLO 2 SYSTEM 28 COMPACT GA (GC 41-075-74), MEGAFLO 2 SYSTEM 32 COMPACT GA (GC 41-075-75)
manualmanualBAXI appliance manual — NETA-TEC COMBI 24 GA (GC 47-075-51), NETA-TEC COMBI 28 GA (GC 47-075-52), NETA-TEC COMBI 33 GA (GC 47-075-53)
manualmanualBAXI appliance manual — NETA-TEC PLUS COMBI 24 GA (GC 47-075-64), NETA-TEC PLUS COMBI 28 GA (GC 47-075-65), NETA-TEC PLUS COMBI 33 GA (GC 47-075-66)
manualmanualPOTTERTON appliance manual — APOLLO 25 (GC 47-393-38), APOLLO 30 (GC 47-393-37)
manualmanualPOTTERTON appliance manual — ULTRA SYSTEM 12 ErP (GC 41-592-71), ULTRA SYSTEM 15 ErP (GC 41-592-72), ULTRA SYSTEM 18 ErP (GC 41-592-73), ULTRA SYSTEM 24 ErP (GC 41-592-74), ULTRA SYSTEM 28 ErP (GC 41-592-75)
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