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Doulton 2504 in M12UCC: what 0.2 micron means on a ceramic candle, and when it is worth replacing
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RMB 577.00
RMB 999.00
Save RMB 422.00 (-42%)
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About this product
Ceramic candles are the reason some households keep a Doulton filter running for years: unlike a sealed block, the ceramic body can be taken out and scrubbed, so the surface is renewed instead of thrown away. This listing is the 2504 cartridge, described as 0.2 micron and as original stock imported from the United Kingdom. The number to match is the one on the candle already in your housing, and this listing gives two: 2504 and M12UCC. Write both down and compare them with what is printed on the part you are replacing, because a 2504 from another series will not thread onto the same filter head, and the head decides which one you need. Two more things to check before paying: whether your unit holds one candle or two, and the state of the rubber seal, since a hardened seal leaks no matter how good the cartridge is. What 0.2 micron tells you is the particle size the ceramic body is rated to hold back; it says nothing about taste and nothing about how often it should be cleaned. Ceramic is cleaned rather than scheduled, so the signal is practical: when the flow drops and scrubbing no longer brings it back, it is done. Listed at 577 yuan, with annual sales around 3,000 units.
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Pros & cons
Pros
- The ceramic body is scrubbed rather than discarded, which is why this style of cartridge lasts longer between purchases
- Two identifiers are given, 2504 and M12UCC, so the match can be checked against the candle you are removing
- Described as original stock imported from the United Kingdom, a claim the flagship store can be asked to document
- Sold from the Doulton flagship store, so the model can be cross-checked with the brand
Cons
- The listing gives two identifiers, 2504 and M12UCC, while the filter head decides compatibility: confirm both on your own candle
- A 2504 from another series will not thread onto the same filter head
- Check whether your housing takes one candle or two, and inspect the seal, since a hardened one leaks regardless
- 0.2 micron is a particle rating, not a promise about taste and not a cleaning schedule
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