Sentinel x100
Sentinel x100 for sale on Ireland's largest auction and classifieds sites
Sentinel x100 central - sentinel, heating - £13.99
Heating systems • Sentinel x100 central • Scale inhibitor solution - Free postage - New and Used
Heating systems • Sentinel x100 central • Scale inhibitor solution - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £10.80
Sentinel x100 central • Heating scale inhibitor • Solution specifically storage - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • Solution specifically storage - Free postage - New and Used
Sentinel x100 20l boiler - 20l, - £360.00
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Sentinel x100 inhibitor - sentinel, - £59.99
Sentinel x100 inhibitor • Heating systems • Corrosion protector central - Free postage - New and Used
Sentinel x100 inhibitor • Heating systems • Corrosion protector central - Free postage - New and Used
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Sentinel x100 central heating - central, - £12.94
Central heating • Scale inhibitor made • Brand sentinel this - Free postage - New and Used
Central heating • Scale inhibitor made • Brand sentinel this - Free postage - New and Used
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48 listings · from £9.72 · avg £31.07
⚠️ These listings were last updated more than 10 days ago.
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Browse 48 sentinel x100 listings currently in our index. Prices range from £9.72 to £360, with an average of £31.07. 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 x100 →
Sentinel x100 central heating - x100, - £10.99
Brand new - Free postage - New and Used
Brand new - Free postage - New and Used
Sentinel x100 central heating - central, - £9.80
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Sentinel x100 rapid dose - x100, - £17.50
Sentinel x100 rapid • Dose inhibitor 300ml - Free postage - New and Used
Sentinel x100 rapid • Dose inhibitor 300ml - Free postage - New and Used
Sentinel x100 central - central, heating - £10.80
Sentinel x100 central • Heating scale inhibitor • Bottle specifically use - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • Bottle specifically use - Free postage - New and Used
Sentinel x100 inhibitors - 1l, - £21.50
Fast acting cleaner • Storage tank water • Sentinel x100 inhibitors - Free postage - New and Used
Fast acting cleaner • Storage tank water • Sentinel x100 inhibitors - Free postage - New and Used
Sentinel x100 x200 - sentinel, - £11.39
Cleaner systems older • Than six months • X400 high performance - Free postage - New and Used
Cleaner systems older • Than six months • X400 high performance - Free postage - New and Used
Sentinel x100 central - central, heating - £10.80
Sentinel x100 central • Heating inhibitor protector - Free postage - New and Used
Sentinel x100 central • Heating inhibitor protector - Free postage - New and Used
Lavatap sentinel x100 - x100, 1l - £19.99
Litre bottle treats • 100 litres system • Water which typically - Free postage - New and Used
Litre bottle treats • 100 litres system • Water which typically - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £14.00
Sentinel x100 central • Heating scale inhibitor • Brand new - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • Brand new - Free postage - New and Used
Sentinel x100 inhibitor - x100, - £14.01
Sentinel x100 inhibitor • System cleaner litre - Free postage - New and Used
Sentinel x100 inhibitor • System cleaner litre - Free postage - New and Used
Sentinel x100 concentrated - sentinel, - £14.85
Sentinel x100 inhibitor • Suitable use all • Types indirect central - Free postage - New and Used
Sentinel x100 inhibitor • Suitable use all • Types indirect central - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £10.80
Central heating • Scale inhibitor solution • Made trusted brand - Free postage - New and Used
Central heating • Scale inhibitor solution • Made trusted brand - Free postage - New and Used
Sentinel x100 central heating - central, - £12.50
Sentinel x100 central • Heating inhibitor litre • Solution specifically provide - Free postage - New and Used
Sentinel x100 central • Heating inhibitor litre • Solution specifically provide - Free postage - New and Used
Sentinel x100 inhibitor - sentinel, - £14.33
Central heating system • Suitable use all • Maximise efficiency your - Free postage - New and Used
Central heating system • Suitable use all • Maximise efficiency your - Free postage - New and Used
Sentinel x100 central - sentinel, heating - £19.35
Sentinel x100 central • Heating scale inhibitor • X800 - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • X800 - Free postage - New and Used
Sentinel x100 inhibitor system - sentinel, - £9.72
Sentinel x100 inhibitor • Genuine litre bottle • Product - Free postage - New and Used
Sentinel x100 inhibitor • Genuine litre bottle • Product - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £18.99
Sentinel x100 inhibitor • Will extend life • System ensuring maximum - Free postage - New and Used
Sentinel x100 inhibitor • Will extend life • System ensuring maximum - Free postage - New and Used
Sentinel x100 and - x100, - £16.15
Sentinel x100 x800 • Pack - Free postage - New and Used
Sentinel x100 x800 • Pack - Free postage - New and Used
Sentinel x100 inihibitor and - sentinel, - £29.99
Sentinel x800 rapid • Cleaner fast acting • X100 inhibitor central - Free postage - New and Used
Sentinel x800 rapid • Cleaner fast acting • X100 inhibitor central - Free postage - New and Used
Sentinel x100 inhibitor - sentinel, 1l - £9.72
Sentinel x100 inhibitor • Genuine product ideal • System protection maintenance - Free postage - New and Used
Sentinel x100 inhibitor • Genuine product ideal • System protection maintenance - Free postage - New and Used
Sentinel x100 x300 - x300, x400 - £21.82
X400 high performance • Cleaner sludge remover • Old systems x800 - Free postage - New and Used
X400 high performance • Cleaner sludge remover • Old systems x800 - Free postage - New and Used
Sentinel x100 super - x100, - £16.99
Sentinel x100 central • Heating inhibitor 500ml • Treats 100 litres - Free postage - New and Used
Sentinel x100 central • Heating inhibitor 500ml • Treats 100 litres - Free postage - New and Used
Sentinel x100 inhibitor system - inhibitor, - £54.99
Central heating inhibitor • Prevents rust sludge • Build litre bottles - Free postage - New and Used
Central heating inhibitor • Prevents rust sludge • Build litre bottles - Free postage - New and Used
Sentinel x100 boiler - sentinel, - £25.00
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Sentinel x100 central - sentinel, - £34.50
Sentinel x100 central • Heating scale inhibitor • Premium storage tank - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • Premium storage tank - Free postage - New and Used
Sentinel x100 central - x100, - £30.29
Sentinel x100 inhibitor • Central heating system • Key features ean - Free postage - New and Used
Sentinel x100 inhibitor • Central heating system • Key features ean - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £16.50
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Sentinel x100 rapid - sentinel, - £150.00
Sentinel x100 rapid • Dose inhibitor 300ml • Box - Free postage - New and Used
Sentinel x100 rapid • Dose inhibitor 300ml • Box - Free postage - New and Used
Sentinel x100 central heating - x100, - £15.99
Sentinel x100 central • Heating system inhibitor • Reliable product prevent - Free postage - New and Used
Sentinel x100 central • Heating system inhibitor • Reliable product prevent - Free postage - New and Used
Sentinel x100 central heating - x100, - £16.99
Sentinel x100 central • Heating inhibitor prevents • Corrosion limescale - Free postage - New and Used
Sentinel x100 central • Heating inhibitor prevents • Corrosion limescale - Free postage - New and Used
Sentinel x100 inhibitor - sentinel, 1l - £9.72
Sentinel x100 inhibitor • Genuine central heating • System protector easy - Free postage - New and Used
Sentinel x100 inhibitor • Genuine central heating • System protector easy - Free postage - New and Used
Sentinel x100 x1 - x1, - £29.99
X100 sentinel x800 • Offer includes two • High quality storage - Free postage - New and Used
X100 sentinel x800 • Offer includes two • High quality storage - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £11.17
Sentinel x100 central • Heating scale inhibitor • Solution specifically storage - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • Solution specifically storage - Free postage - New and Used
Sentinel x100 central - central, heating - £14.71
Central heating system • Suitable use all • Maximise efficiency your - Free postage - New and Used
Central heating system • Suitable use all • Maximise efficiency your - Free postage - New and Used
Sentinel x100 concentrated - x100, - £14.10
Sentinel x100 concentrated • Liquid bottle inhibitor • Protector high quality - Free postage - New and Used
Sentinel x100 concentrated • Liquid bottle inhibitor • Protector high quality - Free postage - New and Used
Sentinel x100 central heating - sentinel, - £10.90
Sentinel x100 central • Heating scale inhibitor • 1ltr - Free postage - New and Used
Sentinel x100 central • Heating scale inhibitor • 1ltr - Free postage - New and Used
Sentinel x100 inhibitor - x, - £33.25
Sentinel inhibitor 1ltr • Neutral formulation - Free postage - New and Used
Sentinel inhibitor 1ltr • Neutral formulation - Free postage - New and Used
Sentinel x100 rapid - rapid, dose - £16.67
Sentinel x100 rapid • Dose system inhibitor • 300ml - Free postage - New and Used
Sentinel x100 rapid • Dose system inhibitor • 300ml - Free postage - New and Used
Sentinel x100 central heating - x100, - £10.79
New inhibitor - Free postage - New and Used
New inhibitor - Free postage - New and Used
Sentinel x100 inhibitor - x100, - £15.99
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Suitable use all • Types indirect central • Heating system sentinel - Free postage - New and Used
Sentinel x100 central heating - central, - £21.87
Suitable use all • Types indirect central • Heating system will - Free postage - New and Used
Suitable use all • Types indirect central • Heating system will - Free postage - New and Used
Sentinel x100 central - sentinel, - £138.99
Will respond you • Within hours our • Best help - Free postage - New and Used
Will respond you • Within hours our • Best help - Free postage - New and Used
Sentinel x100 x800 inhibitor - sentinel, - £25.00
Sentinel x100 x800 • Inhibitor cleaner high • Quality product manufactured - Free postage - New and Used
Sentinel x100 x800 • Inhibitor cleaner high • Quality product manufactured - Free postage - New and Used
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Everything you need to know about sentinel x100
Whether you are looking for a brand-new or second-hand sentinel x100, 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 £9.72, while premium listings can reach £360 — giving you a wide budget spread to work with. The average price of £31.07 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.