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🛠️ Defend your heat, ditch the sludge — efficiency never looked this sleek!
The Boiler-m8 Defender-2 is a robust 22mm central heating magnetic filter featuring a 360-degree brass diverter and full bore isolating valves. Designed to trap both magnetic and non-magnetic sludge, it protects and boosts heating system efficiency with easy installation and maintenance. Trusted by professionals and DIYers alike, it offers a watertight seal and durable construction for long-lasting performance.
| ASIN | B09TLCK1LG |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 231,612 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,181 in Central Heating System Accessories |
| Brand | Boiler-m8 |
| Colour | Black |
| Compatible Devices | heaters |
| Customer Reviews | 4.4 4.4 out of 5 stars (93) |
| Date First Available | 24 Oct. 2016 |
| Included Components | Isolating Valves and Spanner |
| Item Weight | 2.41 kg |
| Material Type | PA66 Polymer |
| Model | Defender-2 |
| Part Number | 150-4037 |
| Product Dimensions | 23 x 13 x 8 cm; 2.41 kg |
M**H
Works well and simple to install and use
Good quality parts. Straightforward to fit and maintain with no leaks. The two isolation valves are easy to operate for cleaning out. Heavy particles collected by the filter can be emptied out first. Magnetic particles can be released by withdrawing the strong magnet. An impressive amount of crud was collected in a bucket after only a few days.
K**K
Great Product _ Great Value
Really good product. I swapped out a a Fernox TF1 which is 3 times the price of this one. Same fittings, insert size and it was an easy fit/ replacement. A*
A**L
easy to fit and makes adding inhibitor etc to your system very easy.
fitted to a new heating system and installation was fine, makes it easy to add cleaner or inhibitor to your system.
J**Y
Good boiler mag.
This boiler mag is incredibly competitively price compared to market leading brands. That said that saving does not appear to have came at the expense of quality. The unit it's self feels good quality and nice and durable. Very simple to fit on the return pipework with basic plumbing knowledge and tools. The valves were a little stiff initially but I presume that's a result of it sat in a warehouse for a period of time before I purchased it. I would question the accuracy of the integrated temperature gauge as that didn't move when I tested the heating on a new boiler install however my intended use is for the mag filter its self rather than a temperature gauge. Happy to recommend.
A**R
First class.
Well made filter unit.
M**G
Excellent
Very good for price
A**R
isolation valves missing
item arrived with no isolation valves in box! shame as iv been buying these filters for a while now with no issues
M**S
Very versatile and great performance
Worked very well for my DIY installation. Supports vertical and horizontal pipe orientation. No leaks, easy to service. I am very impressed.
M**L
Al proceder de Inglaterra me temía problemas de envío,pero en una semana ya lo tenía,impecable su presentación,muy buena calidad y fácil de instalar,trae todo lo necesario,el tubo a cortar son 20 centímetros y queda perfecto.Precio/calidad imbatible
B**N
Conforme à la description
A**S
Provkörd ett par månader nu, fungerar över förväntan!
Trustpilot
1 month ago
1 week ago