Rubber Seal Hot Water Bottle Stopper

This hot water bottle stopper is a replacement stopper for our classic rubber bottle range in pink, cream, blue and purple in 2.0 litre size and 750ml size.   It will not fit any other size, type or colour of bottle.   We stock a very large range and not all have the same stopper, these use a rubber washer, many these days are supplied without a rubber seal, see No Seal Stopper   If your bottle does not have a rubber seal this hot water bottle stopper will not fit.   Please note stoppers must be like for like for a perfect fit, they may all look the same but they are not a generic fit.   Thread sizes vary between different brands so even though the opening may be similar the thread must also match exactly.   If you know the brand name of your bottle it is best to search for an identical replacement or go back to shop or seller from where it was purchased from.   Many manufacturer's patent their design of hot water bottle stopper preventing others from using the same design, the moulds are specific to their brands so only the correct stopper will fit perfectly.

It is recommended to change your hot water bottle every 3 years, if the stopper is worn there is a very good chance there will be also wear and tear inside which could present itself at a later date.   Rubber is perishable and will wear out from the inside out, look for any thin patches around the belly of the hot water bottle and if feels thinner and much hotter it would be best to invest in a new bottle.


TWIN PACK - Colour may vary.


Availability: In stock


  • Question:  Which stoppers do I need to replace 0.5 l rubber hot water bottles.

    Answer:  Choose Rubber Seal Stopper for 0.5 litre and one litre bottles made up to 2018. From June 2018 the mini and small 1 litre bottle move to stopper without a rubber seal. These are small than the other stoppers and will only fit those bottles. Our 2.0 litre rubber bottles will still have a rubber seal.


  • Question:  Could you give me the dimensions of this stopper? And can you tell me if the washer is a flat ring one, or with a deeper ring section that embeds into the stopper base? It looks like the right replacement, but want to be as sure as I can. Many thanks.

    Answer:  This stopper is for our bottles and is not generic. The washer in part of the whole stopper, not a flat washer ring type. Measurement would not help as even though it may have the same length and width the thread may be thinner, wider, flatter, rounder etc. The whole stopper has to fit, we have seen stoppers partly fit and with a bit of pressure split the neck causing dangerous leaks. It is the reason we do not recommend buying a stopper unless it is from the same supplier.


  • Question:  Why are we advised not to use water from our domestic hot water system?

    Answer:  A standard hot water system may have impurities that can corrode the inside of a hot water bottle. By using water that has previously been boiled from a kettle avoids the pitfall from continued use of a hot water system and protects the inside of a hot water bottle.





  • •   Fit Our Rubber Hot Water Bottle ONLY

  • •   Will NOT fit other makes

  • •   Diameter Size: 24 mm

  • •   Size: Length 4.3 cm x Width 4 cm

  • •   Weight: 10 grams

  • •   2 Year Manufacturer Guarantee

Reviews for Rubber Seal Hot Water Bottle Stopper

  • Ed - Tuesday, 12th October 2021

    Hi, many thanks for the replacement stopper recieved this morning. delivery no 10218. What excellent service. Very much appreciated, Its good to have my bottle fuctional again.

  • Allan - Thursday, 27th February 2020

    Just a quick line to say the spare stopper arrived OK this time. The excellent service is much appreciated and my hot water bottle is working again, a bargain at the price. Glad I managed to find this, very helpful.

  • Len - Thursday, 7th November 2019

    Fitted first time and working, job done.

  • Lisa - Sunday, 19th August 2018

    Good service although wrong size, got refunded after chatting to helpful lady.

  • Jon - Friday, 16th March 2018

    Fitted OK

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