Picture of Doulton Dalton BioTect Ultra BTU 2504 10-inch diatom ceramic filter (2 unit price)
Product: Doulton_BTU2504

Doulton Dalton BioTect Ultra BTU 2504 Diatom Porcelain Filter Cartridge (2 unit price)


  • BTU 2504 filter power: 0.2 microns. Nano antibacterial technology
  • Filter life: up to 9-12 months / 2300 liters
  • BTU 2504 can filter out heavy metals (lead, cadmium, mercury)
  • BTU 2504 is suitable for Doulton M12 series
  • Meets NSF 42 and 53 requirements
  • Made in uk

Comparison table of doulton water filters>

*Promotion period is from 1/9/2021-30/9/2021

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Free shipping for all Doulton orders of amount above $500. Delivery fee of HK$50 will be charged for order below $500. Click HERE to see more Doulton's products.

Comparison of 3 main filter elements

  • UCC (Basic Performance) : It is the basic version of the filter element, which is only suitable for BSP series water filters. The simplest filtering function is required, such as the isolation of lead water, UCC is sufficient
  • HPU (medium efficiency) : suitable for a series of water filters, including the M15 series . The HPU filter element adopts the "high-density channel technology" technology to make the micropores evenly distributed and give full play to the function of each filtering micropore to achieve the best filtered water quality standard.
  • BTU (High Performance): Only applicable to the BTU filter element of M12 series water filter, BioTect "nano antibacterial technology" is added to improve the product performance and efficacy, make its structure more orderly, and the pore size becomes smaller, thereby greatly improving Antibacterial function of filter element

BTU 2504 Diatom Porcelain Filter Cartridge

Filter element technology

The brand-new BioTect™ nano antibacterial technology greatly enhances the antibacterial function of the filter element.


Diatom Porcelain
Using 100% natural diatoms, the particles of diatom porcelain are very fine, and the gaps between the particles are even narrower. After solidification, a huge "microporous network" is formed inside, so it can effectively prevent particles with larger pores from passing through , Absolutely remove pathogenic bacteria and harmful substances.


Silver ion
The outer bladder of the diatom porcelain filter element is equipped with silver elements to prevent the growth of bacteria. The solid structure of the ceramic absolutely prevents the silver elements from falling off and dissolving into water. The filtered water is pure and ready to drink without boiling.


Activated carbon
Dalton uses the most advanced extruded activated carbon, which can effectively remove harmful chemicals in the water, such as chlorine, pesticides and pesticides, organic substances, and filter out carcinogens such as peculiar smell, color and trihalomethane.

Ion exchange material
Using ATS ion exchange resin, it can effectively remove heavy metal lead ion.

Can filter contaminants



International Certification

  • National Sanitation Foundation NSF #42, #53 (Sept., 93) CLASS 1 standard
  • British Standard BS5750 Part II ISO 9001:2008
  • British WRAS certification
  • American Water Quality Association Certification
  • The Ministry of Health of the People's Republic of China Imports Hygiene License for Products Involving Hygiene and Safety of Drinking Water Wei Shui Jin Zi (2003) No. 0008 and (2008) No. 0014 and No. 055


  • Delivery Service is only restricted to Hong Kong (excluding islands, closed area and locations without elevator).
  • PO Box address is not accepted.



  • Free shipping for all Doulton orders of amount above $500.
  • Delivery fee of HK$50 will be charged for order below $500.
  • For all order ship to special area, Postage pay on delivery
    Ma Wan, Chek Lap Kok, Hong Kong Disneyland, Discovery Bay, Ngong Ping 360, Cheung Chau, Lantau Island, Mui Wo, Tai O, Peng Chau, Lamma Island



  • Ordered goods will be delivered in 7 working days (Mon to Fri, except for Public Holidays)after order confirmation. Delivery time is 9am - 6pm.
  • If there is no recipient to receive the ordered goods and the order is not successfully delivered, we can reschedule delivery again. However, there will be an extra shipping charge of (to be paid upon delivery). If Doulton (Hong Kong) Limited can’t reach our customers for rescheduling the delivery date and time in 5 working days, the order will be canceled and a refund of the balance will be arranged after deducting shipping fee HK $ 50 and special area surcharge.
  • Delivery service may be canceled or delayed due to weather, traffic, district or other factors and the delivery will be soon re-arranged.
  • In case your ordered items are not available, or your order is rejected, Doulton (Hong Kong) Limited will inform you by phone, message or email for further arrangement.



  • All goods are imported officially and maintenance service is provided by Doulton (Hong Kong) Limited
  • keep the product warranty card (if any) and the invoice.
  • If you buy a product with anti-counterfeiting label, please cut off the label and attach it to the invoice to enjoy the warranty service.
  • Please complete the online-registration within 30 days from the day of purchase. We guarantee to offer 12 months free maintenance service from the date of purchase (excluding all doulton filter candle)
  • Online-registration: https://forms.gle/1t7Cxbr4GBwAwjiK7
  • Product warranty applies only to Hong Kong only.
  • Doulton (Hong Kong) Limited is not responsible for any direct or indirect losses caused by product damage.


> Doulton (Hong Kong) Limited customer service hotline: 2796 3210
> This Product is provided by Doulton (Hong Kong) Limited
> Should any dispute arise, Doulton (Hong Kong) Limited and health.ESDlife reserves the right of final decision

【New Customer】$200 off on your 1st order above $2,000 Code: