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Sentinel x400

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Sentinel x400 for sale on Ireland's largest auction and classifieds sites

Home / Heating, Cooling & Air / Sentinel x400 refurbished & used for sale | For Sale UK
Sentinel x400 high performance - sentinel,

Sentinel x400 high performance - sentinel,

£13.99 · Buy It Now

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Sentinel x400 central heating - sentinel,

Sentinel x400 central heating - sentinel,

£16.90 · Buy It Now

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Sentinel x400 central heating - sentinel,

Sentinel x400 central heating - sentinel,

£19.90 · Buy It Now

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Sentinel x400 high - x400, performance

Sentinel x400 high - x400, performance

£16.50 · Buy It Now

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Sentinel x400 system - system, restorer

Sentinel x400 system - system, restorer

£17.99 · Buy It Now

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Sentinel x400 central heating - x400,

Sentinel x400 central heating - x400,

£14.99 · Buy It Now

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Sentinel x400 rapid dose - sentinel,

Sentinel x400 rapid dose - sentinel,

£18.99 · Buy It Now

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Sentinel x100 x200 - x100, x400

Sentinel x100 x200 - x100, x400

£11.99 · Buy It Now

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Sentinel x400 central heating - sentinel,

Sentinel x400 central heating - sentinel,

£14.99 · Buy It Now

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Sentinel x100 x300 x400 x800 - x100,

Sentinel x100 x300 x400 x800 - x100,

£21.82 · Buy It Now

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Sentinel x400 high performance - sentinel,

Sentinel x400 high performance - sentinel,

£10.80 · Buy It Now

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Sentinel x400 1litre - 1litre, bottle

Sentinel x400 1litre - 1litre, bottle

£65.00 · Buy It Now

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Sentinel x100 rapid dose - sentinel,

Sentinel x100 rapid dose - sentinel,

£16.67 · Buy It Now

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Sentinel x400 central heating - x400,

Sentinel x400 central heating - x400,

£18.99 · Buy It Now

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Sentinel x400 high performance - sentinel,

Sentinel x400 high performance - sentinel,

£22.34 · Buy It Now

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Sentinel x400 high performance - sentinel,

Sentinel x400 high performance - sentinel,

£24.95 · Buy It Now

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Sentinel x400 cleaner - sentinel,

Sentinel x400 cleaner - sentinel,

£14.97 · Buy It Now

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Sentinel internal leak sealer - internal,

Sentinel internal leak sealer - internal,

£16.99 · Buy It Now

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Sentinel x400 rapid dose - sentinel,

Sentinel x400 rapid dose - sentinel,

£14.99 · Buy It Now

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Sentinel x100 x400 - sentinel, x100,

Sentinel x100 x400 - sentinel, x100,

£17.99 · Buy It Now

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Sentinel leak sealer rapid - leak,

Sentinel leak sealer rapid - leak,

£16.99 · Buy It Now

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Sentinel x400rd rapid dose - sentinel,

Sentinel x400rd rapid dose - sentinel,

£35.99 · Buy It Now

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Sentinel leak sealer - 1l,

Sentinel leak sealer - 1l,

£17.99 · Buy It Now

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Sentinel x400 high performance - high,

Sentinel x400 high performance - high,

£21.49 · Buy It Now

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Sentinel x400 sludge - sludge, remover

Sentinel x400 sludge - sludge, remover

£37.50 · Buy It Now

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Sentinel high performance - sentinel,

Sentinel high performance - sentinel,

£39.79 · Buy It Now

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Sentinel leak sealer rapid - sentinel,

Sentinel leak sealer rapid - sentinel,

£15.49 · Buy It Now

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Sentinel internal leak sealer - sentinel,

Sentinel internal leak sealer - sentinel,

£17.92 · Buy It Now

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Twyford optima49 dual flush - optima49,

Twyford optima49 dual flush - optima49,

£20.57 · Buy It Now

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Sentinel x800 central - x,

Sentinel x800 central - x,

£89.10 · Buy It Now

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Sentinel x400 high performance - sentinel,

Sentinel x400 high performance - sentinel,

£21.50 · Buy It Now

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Sentinel internal leak sealer - internal,

Sentinel internal leak sealer - internal,

£15.00 · Buy It Now

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Sentinel central heating - central,

Sentinel central heating - central,

£31.90 · Buy It Now

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Sentinel internal leak - internal, sealer

Sentinel internal leak - internal, sealer

£15.99 · Buy It Now

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Sentinel x400 central heating - sentinel,

Sentinel x400 central heating - sentinel,

£18.99 · Buy It Now

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Sentinel internal leak - internal,

Sentinel internal leak - internal,

£16.67 · Buy It Now

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Sentinel x400 system restorer - sentinel,

Sentinel x400 system restorer - sentinel,

£21.99 · Buy It Now

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Sentinel internal leak sealer - sentinel,

Sentinel internal leak sealer - sentinel,

£16.67 · Buy It Now

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X100 x400 sentinels central - x100, sentinels.

X100 x400 sentinels central - x100, sentinels.

£260.70 · Buy It Now

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📊39 listings · from £10.8 · avg £28.82
⚠️ These listings were last updated more than 21 days ago. Search for fresh listings

Browse 39 sentinel x400 listings currently in our index. Prices range from £10.8 to £260.7, with an average of £28.82. 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 sentinel x400 →

Try this: vaillant combi | forced air heater | boiler parts thermostat | ceiling extractor fan | worcester controls | babyliss gas energy cells | vaillant spares | cylinder thermostat | flow switch | 10 litre dehumidifier

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about sentinel x400

Whether you are looking for a brand-new or second-hand sentinel x400, eBay offers one of the largest selections available online. With 39 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 £10.8, while premium listings can reach £260.7 — giving you a wide budget spread to work with. The average price of £28.82 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.

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