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RM Cylinders

RM Indirect Copper Cylinder 900 x 450mm

Product Code: 47140

RM 900 x 450mm Indirect Copper Cylinder. Grade 3 with maximum working head of 10m. 25mm standard insulation and large heating coil. Complies with Building Regulations Part L.

  • 2 Year Manufacturer's Guarantee
  • Complies with Building Regulations Part L
  • British Standard Kitemarked
  • View more information

117Ltr capacity.


3.7333 5 15

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RM Indirect Copper Cylinder 900 x 450mm 3.7 5 15 15
Indirect Cylinder Cylinder is of decent quality. The one I received was supplied with the draw off and cold inlet connections being 1" female threads, and with the Flow and Return being 1" male threads. Screwfix could add this to the description to make things a little easier when it comes to knowing what fittings you might need. It is very well packaged so you can't see it without opening the box. Also it's worth noting that it's not supplied with an immersion heater or a plug to blank it off, so that will also need to be ordered separately. For the DIYers... If you are connecting to 22mm pipes then you'll need 2 x catalogue number 61955 and 2 catalogue number 50777, or equivalent. If you are not using an immersion heater you will need a plug, catalogue number 51855. I'd advise against using jointing compound on the threads and instead use ptfe tape as the threads are cut a little generously and the tape is needed to gain a good seal. Jointing compound / paste is not rigid enough to take up the spaces on the threads, especially on the female connections. 20 May 2015
Copper cylinder Good price, good quality ,came in well padded box(never seen one in a box in 30 years) would buy again 20 May 2015
Hot water cylinder Needed a new cylinder on Saturday afternoon all plumbing shops closed two in stock at reading store £40 cheaper than the biggest diy chain no problems fitting well done screwfix. 20 Apr 2015
Dodgy Cylinder Firstly, absolutely no problem with Screwfix staff. Bought and installed first cylinder and had great difficulty sealing lower, cold water inlet. Tried PTFE tape, Jointing Compound and LS X, all to no avail - joint always had constant drip. Eventually came to conclusion it was the factory fitted flange joint that was faulty. Screwfix exchanged tank with no quibbles (although they did supply a bigger tank which wasn't immediately noticed and necessitated a return trip) which is now installed. Same joint still weeps but will hopefully seal over time. This is a weak spot on the tank as you are always worried that you are going to over-tighten the 1" nipple which should be fitted as standard. 7 Dec 2014
  • 2015-05-25T14:47:13.911-05:00
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Brand RM Cylinders
Grade Grade 3
Manufacturer Guarantee 2 years
Manufacturing Standards British Standard Kitemarked
Pack Size 1
Product Diameter 450 mm
Product Height 900 mm
Product Type Copper Cylinder
Total Product Weight 16 kg