Radiator caps
Radiator caps for sale on Ireland's largest auction and classifieds sites
50 or 100 - 2/4/6/8/10/, radiator - £43.99
- Free postage - New and Used
- Free postage - New and Used
Pack 20mm radiator valve - pack, - £4.69
20mm radiator valve • These covers are • Specifically smooth cylindrical - Free postage - New and Used
20mm radiator valve • These covers are • Specifically smooth cylindrical - Free postage - New and Used
8 10 radiator - 4, / - £6.99
These covers help • Safeguard your radiator • Valves which can - Free postage - New and Used
These covers help • Safeguard your radiator • Valves which can - Free postage - New and Used
Central heating radiator - central, - £8.15
Total length 33mm - Free postage - New and Used
Total length 33mm - Free postage - New and Used
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Lockshield radiator valve - radiator, - £3.99
Premium petg quality • Made from durable • High temperature resistant - Free postage - New and Used
Premium petg quality • Made from durable • High temperature resistant - Free postage - New and Used
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48 listings · from £3.99 · avg £9.82
⚠️ These listings were last updated more than 11 days ago.
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Browse 48 radiator caps listings currently in our index. Prices range from £3.99 to £44.99, with an average of £9.82. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about radiator caps →
20mm radiator valve covers - radiator, - £43.49
20mm radiator valve • Covers caps replacement • Black white universal - Free postage - New and Used
20mm radiator valve • Covers caps replacement • Black white universal - Free postage - New and Used
20mm radiator valve - radiator, caps - £41.99
20mm radiator valve • Caps covers lockshield • Multi packs 100 - Free postage - New and Used
20mm radiator valve • Caps covers lockshield • Multi packs 100 - Free postage - New and Used
Central heating radiator - 5, x - £5.20
Larger spindle 9mm • 5mm total length • 32mm - Free postage - New and Used
Larger spindle 9mm • 5mm total length • 32mm - Free postage - New and Used
20mm radiator valve covers - 20mm, - £4.49
Radiator valve • Covers caps replacement • Available black white - Free postage - New and Used
Radiator valve • Covers caps replacement • Available black white - Free postage - New and Used
Central heating radiator - 5, - £5.45
Larger spindle 9mm • 5mm - Free postage - New and Used
Larger spindle 9mm • 5mm - Free postage - New and Used
Lockshield radiator valve - 6, - £7.59
White wheel head • Cap only valve • Included length whole - Free postage - New and Used
White wheel head • Cap only valve • Included length whole - Free postage - New and Used
8 10 radiator - 2, / - £44.99
These covers help • Safeguard your radiator • Valves which can - Free postage - New and Used
These covers help • Safeguard your radiator • Valves which can - Free postage - New and Used
Radiator valve cap easy - radiator, | - £8.70
Includes rubber insert • Washer hold place • Over valve tap - Free postage - New and Used
Includes rubber insert • Washer hold place • Over valve tap - Free postage - New and Used
Radiator valve caps covers - radiator, - £4.98
These covers help • Protect your radiator • Valves which can - Free postage - New and Used
These covers help • Protect your radiator • Valves which can - Free postage - New and Used
Central heating radiator - x, - £10.35
Larger spindle 9mm • 5mm - Free postage - New and Used
Larger spindle 9mm • 5mm - Free postage - New and Used
Radiator caps universal - caps, - £13.29
Universal fit these • Radiator valve cap • Almost all kinds - Free postage - New and Used
Universal fit these • Radiator valve cap • Almost all kinds - Free postage - New and Used
Replacement radiator - 5, - £8.98
- Free postage - New and Used
- Free postage - New and Used
Central heating radiator - x, - £4.45
Larger spindle 9mm • 5mm total length • 32mm - Free postage - New and Used
Larger spindle 9mm • 5mm total length • 32mm - Free postage - New and Used
Radiator valve caps - 8, - £5.49
Would always sort • Before this point • These valves have - Free postage - New and Used
Would always sort • Before this point • These valves have - Free postage - New and Used
Replacement white radiator - x, - £7.95
Spindle 5mm 8mm - Free postage - New and Used
Spindle 5mm 8mm - Free postage - New and Used
Radiator valve caps white - 8, - £5.29
This ensures good • Secure fit most • Radiators would always - Free postage - New and Used
This ensures good • Secure fit most • Radiators would always - Free postage - New and Used
Radiator valve cap - 2, easy - £3.99
Products will not • Serviced per maintenance • Instructions includes rubber - Free postage - New and Used
Products will not • Serviced per maintenance • Instructions includes rubber - Free postage - New and Used
Central heating radiator - 6, - £6.48
Larger spindle 9mm • 5mm total length • 32mm - Free postage - New and Used
Larger spindle 9mm • 5mm total length • 32mm - Free postage - New and Used
Central heating radiator - , - £6.95
- Free postage - New and Used
- Free postage - New and Used
Lockshield radiator valve - tc, - £7.95
- Free postage - New and Used
- Free postage - New and Used
Universal radiator valve cap - radiator, - £3.99
Lockshield radiator valves • Universal fit most • Valve cap push - Free postage - New and Used
Lockshield radiator valves • Universal fit most • Valve cap push - Free postage - New and Used
Radiator valve cap easy - x, | - £4.99
Made from strong • Abs plastic material • That ensures long - Free postage - New and Used
Made from strong • Abs plastic material • That ensures long - Free postage - New and Used
Radiator valve cap - 4, | - £5.99
Includes rubber insert • Washer hold place • Over valve tap - Free postage - New and Used
Includes rubber insert • Washer hold place • Over valve tap - Free postage - New and Used
Radiator valve caps covers - radiator, - £8.89
20mm radiator valve • Main shows cover • Stem reference these - Free postage - New and Used
20mm radiator valve • Main shows cover • Stem reference these - Free postage - New and Used
Anthracite grey radiator - 6, - £5.99
Anthracite grey radiator • Valve caps covers • Cover petg plastic - Free postage - New and Used
Anthracite grey radiator • Valve caps covers • Cover petg plastic - Free postage - New and Used
Radiator valve cap - valve, easy - £4.69
These covers are • Specifically smooth cylindrical • 20mm radiator valve - Free postage - New and Used
These covers are • Specifically smooth cylindrical • 20mm radiator valve - Free postage - New and Used
Universal replacement radiator - universal, - £9.49
Easy install radiator • Fit cap special • Simply remove washer - Free postage - New and Used
Easy install radiator • Fit cap special • Simply remove washer - Free postage - New and Used
Large central heating - x, - £5.45
Regret these are • Too big send • Via large letter - Free postage - New and Used
Regret these are • Too big send • Via large letter - Free postage - New and Used
Radiator valve caps - valve, - £7.99
Petg which use • High quality only • Real mark faint - Free postage - New and Used
Petg which use • High quality only • Real mark faint - Free postage - New and Used
Radiator valve caps bespoke - valve, - £5.79
This listing some • Replica centre brand • Radiator valve caps - Free postage - New and Used
This listing some • Replica centre brand • Radiator valve caps - Free postage - New and Used
Myson matchmate wheelhead - myson, - £4.95
Myson matchmate matewhtop • Wheelhead cap white - Free postage - New and Used
Myson matchmate matewhtop • Wheelhead cap white - Free postage - New and Used
Honeywell trv radiator - honeywell, - £6.52
May also fit • Other honeywell trv • Keep valve shut - Free postage - New and Used
May also fit • Other honeywell trv • Keep valve shut - Free postage - New and Used
Radiator towel rails - radiator, - £4.59
Towel radiators • Specifications blanking plugs • Thread 15mm brass - Free postage - New and Used
Towel radiators • Specifications blanking plugs • Thread 15mm brass - Free postage - New and Used
Radiator valve caps covers - caps, - £5.99
Radiator valve caps • Covers cover petg • Plastic free postage - Free postage - New and Used
Radiator valve caps • Covers cover petg • Plastic free postage - Free postage - New and Used
Radiator valve caps covers - valve, - £10.79
Add touch elegance • Your radiator valves • These printed cap - Free postage - New and Used
Add touch elegance • Your radiator valves • These printed cap - Free postage - New and Used
Radiator valve caps - caps, / - £5.29
You want these • Checkout put sparkle • Would always sort - Free postage - New and Used
You want these • Checkout put sparkle • Would always sort - Free postage - New and Used
Plastic caps for designer - for, - £5.49
Are committed ensure • That won let • You down any - Free postage - New and Used
Are committed ensure • That won let • You down any - Free postage - New and Used
Replacement screw down - x, - £7.95
Spindle 5mm 8mm • Can also used • Screw down fiting - Free postage - New and Used
Spindle 5mm 8mm • Can also used • Screw down fiting - Free postage - New and Used
Lockshield radiator valve - tc, - £13.95
- Free postage - New and Used
- Free postage - New and Used
Lockshield radiator valve - lockshield, - £5.69
Only visible mark • Faint seam which • Can positioned facing - Free postage - New and Used
Only visible mark • Faint seam which • Can positioned facing - Free postage - New and Used
Radiator valve caps white - caps, - £5.59
These are unique • All star design • Would always sort - Free postage - New and Used
These are unique • All star design • Would always sort - Free postage - New and Used
Lockshield radiator valve - lockshield, - £6.69
Standard 20mm radiator • Valve covers are • Valves giving clean - Free postage - New and Used
Standard 20mm radiator • Valve covers are • Valves giving clean - Free postage - New and Used
Central heating radiator - central, - £8.54
Easy install radiator • Fit cap special • Simply remove washer - Free postage - New and Used
Easy install radiator • Fit cap special • Simply remove washer - Free postage - New and Used
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Everything you need to know about radiator caps
Whether you are looking for a brand-new or second-hand radiator caps, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.99, while premium listings can reach £44.99 — giving you a wide budget spread to work with. The average price of £9.82 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.