Sentinel System Filter 22mm Product Code: 77150

For the control and removal of all types of debris commonly associated with wet central heating systems. Sentinel Eliminator uses 4 magnets and 4 cyclones to remove all types of system debris.


  • 1 Year Guarantee
  • 4 x Hydro Cyclones Collect Non-Magnetic Debris
  • Continuous & Effective Clean
  • Dual-Sealed
  • Anti-Tamper Drain Valve


22mm fitting.
Additional Information
Technical Specification
  • Brand : Sentinel
  • Product Type : System Filter
  • Model Name : Eliminator
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • Thread Size : 22 mm
Product Contents
2 x 22mm isolation valves and filter.
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


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€111.95 Incl. 23% VAT

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Sentinel System Filter 22mm is rated 3.8 out of 5 by 21.
Rated 5 out of 5 by from Whats not too like Once fitted, clean every quarter, which takes 10 mins max. That's it. Just note, this has 22mm fittings, my pipework was 28mm, so needed to reduce just for this unit.
Date published: 2018-01-12
Rated 2 out of 5 by from junk filter sentinel make inhibitors and cleansers which are pretty good but this filter is useless.Actually it traps very little of the contaminants. Avoid.
Date published: 2017-08-04
Rated 3 out of 5 by from Awkward to dismantle Easy to fit, little space needed, quality construction and does trap debris. But magnet is awkward to pull down - there's nothing to grip onto - and the body is equally awkward to loosen/tighten for the same reason. You end up twisting the pipe fittings. Seals started leaking within six months.
Date published: 2017-04-23
Rated 2 out of 5 by from Waste of time I have installed 4 of these over the last year believing in the words of manufacturer about dual capabilities of the filter (magnetic and non magnetic filtration). Recently I was called back on the job, 3 months after installing the boiler. The internal filter of the boiler was blocked with particles which came off the pipework and which I would expect to be trapped inside the CH filter- that's it's job- to catch the things before they get inside the boiler. This filter had just a few smal particles inside of it all of which were magnetic bits size of the grain of sand. All the bigger things got trapped inside the boiler. The system was flushed after the installation, long story how these particles got into a circulation, but that's not the point here. The point is that it looked like this thing has done nothing to prevent or at least reduce the amount of debris getting inside the boiler. Fitting this product is a waste of time in my opinion, unless it makes you, or your client feel better. I am really disappointed because it really looked like a quality product but turned out to be useless. After this experience I wonder now how other brands products "really" work, hope they do otherwise we have a plumbing scam of the decade where people are being charged £100 for a plastic jar which does nothing.
Date published: 2015-09-25
Rated 4 out of 5 by from Filter works a treat. Easy to fit with clear instructions. Does a great job and easy to remove collected gunk. I even think the boiler is warming up quicker.
Date published: 2015-03-28
Rated 4 out of 5 by from Easy fitting filter This is one of the easiest filters to fit on the market because the whole filter body detaches. This gives clear access to the nuts to allow fitting of the valves, then the adaptor then the body It also doesn't need loads of headroom to remove a magnet like some others do, so can be fitted on more compact spaces. It is fully adjustable to suit any angle/direction of flow of pipe
Date published: 2015-01-29
Rated 5 out of 5 by from exceptional value product Have fitted a couple off these and cant believe anybody would fit a new boiler without one off these installed ,after all you wouldnt buy a new car and put your old cars dirty oil into it which is what your doing if you fit a new boiler without a filter,totally recommend this filter as it removes all impurities not just the magnetic ones
Date published: 2014-12-30
Rated 4 out of 5 by from Good compact filter This unit is well made, fits well and is compact. The instructions are easy to follow. The only issue I had is that it leaked at first and some how it seems that I had overtightened the connection of the main unit to the adapter tube (by hand). I removed and resembled and it now works fine. I haven't check for debris yet but I'm confident than it will collect everything it is supposed to. The whole system is running quieter already.
Date published: 2014-12-10
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