Bemis 3900 White Toilet Seat

Bemis 3900 Round White Thermoplastic Toilet Seat

16 reviews

£27.17 (Inc. VAT)

Less than 10 Available


Plumbworld has the lowest price for this product!


top fix

Top fix, quick release seat

This toilet seat benefits from a top fix installment meaning it is super easy to install. Better yet, thanks to how accessible it is you are able to do a deeper clean as it is easier to remove and re-fit.

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What’s one of the quickest ways to make a toilet look as good as brand new? Replace the toilet seat! This isn’t a big DIY job, and as well as smartening up the look of your loo, a new seat will make everything more hygienic and clean too. Suitable for all standard oval toilets including many of the back to wall toilets which have become increasingly popular, this heavyweight plastic toilet seat is very easy to fit and even easier to keep clean.

Durable Quality

This is not a flimsy seat which is likely to crack or discolour; it’s made from high quality plastic with plastic hinges. As the hinges are adjustable, this guarantees a perfect fit every time and the hinges will also stop the seat moving around on the loo. This is a high quality seat which offers great value for money and is the idea way of updating bathroom suites with minimal financial outlay and DIY effort or indeed expertise!

Design Features:

  • Heavyweight thermoplastic seat and cover
  • Take-off plastic adjustable bar hinge
  • Fits all standard pans, particularly suitable for back to the wall pans with wellnuts
  • Weight: 2.6kg

Installation Instructions:

  • Adjustable Take off Plastic Hinges
  • Suitable for hole centers from 135 to 165mm
  • Top Fitting - Should be suitable for all pans
  • To see if this will fit your toilet, check the dimensions tab
  • If the seat is to be fitted into a blind hole (no bottom) or no access is available from beneath the pan, well nuts will be required to fit the seat, please see extras below
CE Approved


Bemis 3900 White Toilet Seat


Product Features
Seat Colour White
Soft Close No
Material Plastic
Hinge Material Plastic
Shape Oval
Hinges Top Fix
Guarantee 1 Year

Weights and Dimensions
Hole Centers 135mm - 165mm
Width 371 mm
Length 442 mm

Range Bemis

Bemis 3900 Round White Thermoplastic Toilet Seat

Was £48.26

Save 44%

£ 27.17 (Inc. VAT)

Stock status: Less than 10 Available
Order in next for delivery tomorrow - 21/10/2021
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365 Day Returns

Returns Policy - Changed Your Mind?

If you change your mind about the product when you receive it you can notify us any time within 365 days and return it for a full refund at your own cost. Any refunds will be made within 30 days of receiving your returned item. You are expected to cover the cost to return the item and your initial delivery charge will not be refunded.

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16 Product Reviews

  • John
    5/ 5

    I first purchased this particular toilet seat approximately 10 years ago from a well known hardware chain and liked it very much and therefore, when due to an accident, in needed replacing, I spent some time trying to find the same product, but without success until logging on to Not only did they have this particular item, but it was HALF THE PRICE I paid 10 years ago for EXACTLY the same product!! My wife likes this toilet seat because it is so hygienic and extremley easy to clean, having no bumps, ridges or crevices, and it also looks very good too, not cheap at all. The product was very well packed so no chance of damage with delivery, and the service was prompt and efficient. I would definitely recommend to friends an relatives - and have done!

  • marypop1
    5/ 5

    I have had over the years many toilet seats all colours etc my husband always went for the wooden ones, which were ok to start with, then they discoloured and the brass fittings went greenish,I did not like them much.After purchasing my new one I am delighted with the quality and the look of it,well worth the price I paid for it. I have recommended this toilet seat to my friends as I am so pleased with it, very easy to clean no chemicals just wipe over with a damp cloth, that is all you need to do.

  • Susan Quigley
    5/ 5

    I bought this product as it was the only top-fixing toilet seat available. It arrived one day later than promised but the quality is excellent, robust fixings and quite heavy duty plastic. The fitting instructions are poor, and so it took a while to get right, but overall now it is installed I am pleased with the seat and hope to get many years of use out of it. Good value for the price.

  • Mrs Smith
    5/ 5

    I ordered this toilet seat to replace one that was fitted in my newly built home (6 yrs old). It isnt the perfect fit as it hangs over the front of the toilet but was the nearest size I could find. Fits nice and tight, no slipping like my old one did no matter how many times I screwed the bolts. I didnt fit this, my lovely neighbour did, looked fiddly to me but he sorted no problem

  • Zoe Elliott
    5/ 5

    I bought a couple of these about 10 years ago, together with a couple of others (different manufacturers). The others, despite being more expensive, have had to be replaced multiple times because of rust and under seat urine staining. These have held up well. The old ones are still going strong and I was pleased to find I could still buy more. Good value.

  • Raptor
    5/ 5

    Absolutely excellent value for money. Very rigid, clean lines and warm thermoplastic. Very well packaged and excellent delivery. Cant really say much more but as an engineer I demand high standards and value. This seat ticks all the boxes

  • titian gold
    5/ 5

    Excellent product. Looks more expensive. The service from this company was first class, updates on delivery etc. Would recommend using this company to anyone. Better than your big named ones.

  • John A
    5/ 5

    Having replaced seats over the years with those from a variety of products, it looks like I have finally found one which satisfies all my criteria - cost, ease of fitting and durability.

  • Joyce Powell
    5/ 5

    Very good quality toilet seat that I bought to replace one that had faded. It is such good quality that it makes the whole bathroom suite look better quality too. Would recommend

  • Katy Dukes
    5/ 5

    Items of good quality at reasonable prices. Delivery is prompt and each item is carefully packed. Communication is reassuring. I will shop here again.

  • Betty
    5/ 5

    Purchased on-line. The product arrived within the specified time. It looks good, the quality is good and it is very easy to fit.

  • Charlie
    5/ 5

    Does exactly what was desired and described!