For Sale UK

Sentinel x100

4

Sentinel x100 for sale on largest auction and classifieds sites

Home / Water Heating & Filtration / Sentinel x100 refurbished & used for sale | For Sale UK
Sentinel x100 central heating - central,

Sentinel x100 central heating - central,

£10.00
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - inhibitor, 1l

Sentinel x100 inhibitor - inhibitor, 1l

£59.99
Buy It Now

» View on eBay #sponsored
Brand new sentinel box 12 - box, of

Brand new sentinel box 12 - box, of

£142.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - sentinel,

Sentinel x100 central heating - sentinel,

£13.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£10.26
Buy It Now

» View on eBay #sponsored
Sentinel x100 quick - test, kit

Sentinel x100 quick - test, kit

£4.38
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor system - x100,

Sentinel x100 inhibitor system - x100,

£15.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - sentinel,

Sentinel x100 central heating - sentinel,

£10.80
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - sentinel, 500ml

Sentinel x100 inhibitor - sentinel, 500ml

£12.50
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel,

Sentinel x100 central - sentinel,

£9.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 rapid dose - sentinel,

Sentinel x100 rapid dose - sentinel,

£17.50
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor system - sentinel,

Sentinel x100 inhibitor system - sentinel,

£14.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 quick test - 5x,

Sentinel x100 quick test - 5x,

£16.15
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor and - inhibitor,

Sentinel x100 inhibitor and - inhibitor,

£21.50
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - sentinel, system

Sentinel x100 inhibitor - sentinel, system

£14.01
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - central, heating

Sentinel x100 central - central, heating

£16.90
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel, heating

Sentinel x100 central - sentinel, heating

£11.87
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - 5, x

Sentinel x100 central - 5, x

£75.00
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - x,

Sentinel x100 central - x,

£119.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - sentinel,

Sentinel x100 central heating - sentinel,

£21.87
Buy It Now

» View on eBay #sponsored
Sentinel x100 inihibitor - x100,

Sentinel x100 inihibitor - x100,

£29.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor system - sentinel,

Sentinel x100 inhibitor system - sentinel,

£19.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitors - 1l,

Sentinel x100 inhibitors - 1l,

£24.62
Buy It Now

» View on eBay #sponsored
Sentinel x100 rapid dose - rapid,

Sentinel x100 rapid dose - rapid,

£150.00
Buy It Now

» View on eBay #sponsored
Sentinel x100 concentrated - sentinel,

Sentinel x100 concentrated - sentinel,

£15.45
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - x100,

Sentinel x100 inhibitor - x100,

£14.49
Buy It Now

» View on eBay #sponsored
Sentinel x100 rapid - x100, rapid-dose

Sentinel x100 rapid - x100, rapid-dose

£16.15
Buy It Now

» View on eBay #sponsored
Sentinel x100 boiler - x100, 1l

Sentinel x100 boiler - x100, 1l

£26.25
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£21.50
Buy It Now

» View on eBay #sponsored
Sentinel x100 quick test - quick,

Sentinel x100 quick test - quick,

£17.10
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - sentinel,

Sentinel x100 inhibitor - sentinel,

£15.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 quick - sentinel,

Sentinel x100 quick - sentinel,

£10.79
Buy It Now

» View on eBay #sponsored
Sentinel x100 concentrated - sentinel,

Sentinel x100 concentrated - sentinel,

£14.85
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel, heating

Sentinel x100 central - sentinel, heating

£11.92
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - sentinel,

Sentinel x100 inhibitor - sentinel,

£33.25
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - x100, system

Sentinel x100 inhibitor - x100, system

£17.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 20l boiler - sentinel,

Sentinel x100 20l boiler - sentinel,

£378.00
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - x100, x

Sentinel x100 inhibitor - x100, x

£29.50
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - sentinel, 1l

Sentinel x100 inhibitor - sentinel, 1l

£27.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 x1 - +,

Sentinel x100 x1 - +,

£31.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - sentinel,

Sentinel x100 central heating - sentinel,

£18.99
Buy It Now

» View on eBay #sponsored
Sentinel x800 x100 - x800, &

Sentinel x800 x100 - x800, &

£38.95
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel,

Sentinel x100 central - sentinel,

£189.95
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - x100,

Sentinel x100 inhibitor - x100,

£36.99
Buy It Now

» View on eBay #sponsored
Calmag activ8 c100 - c100, corrosion

Calmag activ8 c100 - c100, corrosion

£12.49
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£1999.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£19.35
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£18.95
Buy It Now

» View on eBay #sponsored
Sentinel eliminator vortex 250 - eliminator,

Sentinel eliminator vortex 250 - eliminator,

£74.98
Buy It Now

» View on eBay #sponsored
Sentinel x100 400 - x100, x

Sentinel x100 400 - x100, x

£46.62
Buy It Now

» View on eBay #sponsored
Sentinel x300 cleaner for - sentinel,

Sentinel x300 cleaner for - sentinel,

£9.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 x800 5 of - x100,

Sentinel x100 x800 5 of - x100,

£179.95
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel, heating

Sentinel x100 central - sentinel, heating

£14.99
Buy It Now

» View on eBay #sponsored
Sentinel x300 cleaner - sentinel,

Sentinel x300 cleaner - sentinel,

£8.99
Buy It Now

» View on eBay #sponsored
Sentinel rapid dose x100 - sentinel,

Sentinel rapid dose x100 - sentinel,

£17.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor x800 - sentinel,

Sentinel x100 inhibitor x800 - sentinel,

£37.95
Buy It Now

» View on eBay #sponsored
Sentinel vortex 250 filter - vortex,

Sentinel vortex 250 filter - vortex,

£69.35
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - x100, heating

Sentinel x100 central - x100, heating

£18.99
Buy It Now

» View on eBay #sponsored
Sentinel v250propk vortex - sentinel, v250propk-gb

Sentinel v250propk vortex - sentinel, v250propk-gb

£82.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - sentinel,

Sentinel x100 central heating - sentinel,

£14.01
Buy It Now

» View on eBay #sponsored
Brand new sentinel eliminator - brand,

Brand new sentinel eliminator - brand,

£94.99
Buy It Now

» View on eBay #sponsored
Sentinel vortex systemcare - sentinel,

Sentinel vortex systemcare - sentinel,

£72.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - inhibitor, 500ml

Sentinel x100 inhibitor - inhibitor, 500ml

£14.75
Buy It Now

» View on eBay #sponsored
Sentinel boiler systemcare - sentinel,

Sentinel boiler systemcare - sentinel,

£78.00
Buy It Now

» View on eBay #sponsored
Sentinel vortex systemcare - vortex,

Sentinel vortex systemcare - vortex,

£99.99
Buy It Now

» View on eBay #sponsored
Sentinel x800 central heating - sentinel,

Sentinel x800 central heating - sentinel,

£21.50
Buy It Now

» View on eBay #sponsored
Sentinel high performance - high,

Sentinel high performance - high,

£39.79
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor x800 - inhibitor,

Sentinel x100 inhibitor x800 - inhibitor,

£33.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£16.04
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel,

Sentinel x100 central - sentinel,

£16.50
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - x100, heating

Sentinel x100 central - x100, heating

£31.37
Buy It Now

» View on eBay #sponsored
Sentinel system care pack - system, 1

Sentinel system care pack - system, 1

£99.95
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - central,

Sentinel x100 central heating - central,

£31.89
Buy It Now

» View on eBay #sponsored
New sentinel vortex systemcare - new,

New sentinel vortex systemcare - new,

£83.89
Buy It Now

» View on eBay #sponsored
Sentinel system care - pack, a

Sentinel system care - pack, a

£139.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 inhibitor - x100, 1l

Sentinel x100 inhibitor - x100, 1l

£57.90
Buy It Now

» View on eBay #sponsored
New sentinel eliminator - new,

New sentinel eliminator - new,

£89.00
Buy It Now

» View on eBay #sponsored
Sentinel vortex systemcare - sentinel,

Sentinel vortex systemcare - sentinel,

£114.99
Buy It Now

» View on eBay #sponsored
Sentinel x100 boiler - sentinel, &

Sentinel x100 boiler - sentinel, &

£21.50
Buy It Now

» View on eBay #sponsored
Sentinel x300 cleaner for new - cleaner,

Sentinel x300 cleaner for new - cleaner,

£8.99
Buy It Now

» View on eBay #sponsored
Sentinel x300 cleaner for - sentinel,

Sentinel x300 cleaner for - sentinel,

£10.80
Buy It Now

» View on eBay #sponsored
Sentinel systemcare pack - pack, c

Sentinel systemcare pack - pack, c

£99.99
Buy It Now

» View on eBay #sponsored
Sentinel vortex systemcare - sentinel,

Sentinel vortex systemcare - sentinel,

£99.99
Buy It Now

» View on eBay #sponsored
Sentinel system care - sentinel, a

Sentinel system care - sentinel, a

£76.61
Buy It Now

» View on eBay #sponsored
Sentinel vortex systemcare - vortex,

Sentinel vortex systemcare - vortex,

£94.99
Buy It Now

» View on eBay #sponsored
Sentinel systemcare pack - systemcare, c

Sentinel systemcare pack - systemcare, c

£129.99
Buy It Now

» View on eBay #sponsored
Sentinel vortex300 central - sentinel,

Sentinel vortex300 central - sentinel,

£82.85
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - central,

Sentinel x100 central heating - central,

£23.58
Buy It Now

» View on eBay #sponsored
Sentinel boiler systemcare - sentinel,

Sentinel boiler systemcare - sentinel,

£79.99
Buy It Now

» View on eBay #sponsored
Inhibitor 100 sentinel - x,

Inhibitor 100 sentinel - x,

£20.42
Buy It Now

» View on eBay #sponsored
Sentinel x100 central - sentinel,

Sentinel x100 central - sentinel,

£40.95
Buy It Now

» View on eBay #sponsored
Sentinel x100 central heating - x100,

Sentinel x100 central heating - x100,

£22.53
Buy It Now

» View on eBay #sponsored
Sentinel 100 inhibitor - x,

Sentinel 100 inhibitor - x,

£16.15
Buy It Now

» View on eBay #sponsored
Sentinel boiler systemcare - sentinel,

Sentinel boiler systemcare - sentinel,

£83.89
Buy It Now

» View on eBay #sponsored
Sentinel boiler systemcare - sentinel,

Sentinel boiler systemcare - sentinel,

£104.69
Buy It Now

» View on eBay #sponsored

Looking for more sentinel x100?

Search eBay live — fresh results filtered for the best value, updated every hour.

🔍 Search live deals
📊95 listings · from £4.38 · avg £69.44
⚠️ These listings were last updated more than 22 days ago. Search for fresh listings

Browse 95 sentinel x100 listings currently in our index. Prices range from £4.38 to £1999.99, with an average of £69.44. 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 →

Try this: plume displacement kit | grundfos 25 55 | synchronous motor | hot water tap | worcester oil boiler parts | megaflow thermostat | wash boiler | lpg shower | potterton timer | pellet boiler

Shop by budget

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

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 95 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 £4.38, while premium listings can reach £1999.99 — giving you a wide budget spread to work with. The average price of £69.44 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.

🔍 sentinel x100 Search live on eBay