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Sediment Filter Cartridge 4.5 x 20 1 Micron Nominal

1 micron filter cartridge that reduces sediment, dirt, scale and rust and gives excellent resistence to chemicals and most bacteria.



Product SKU: WPC1FF20



The Watts WPC1FF20  (full flow) 1 micron nominal pleated polyester filter is a high value water filter cartridge at a very competitive price.

Length - 20"

Diameter - 4.5"

Micron rating - 1 micron nominal

Cartridge details:

  • 19 sq.ft of pleated polyester media wrapped around a durable polypropylene core.
  • Reduces sediment, dirt, scale and rust.
  • Gives excellent resistence to chemicals and most bacteria.
  • Ideal for use as a Ultra-Violet (UV), Rio or Reverse Osmosis (RO) pre-filter.
  • The large surface area makes this cartridge perfect for drinking water filtration in residential, commercial and industrial units.
  • High flow rate and low pressure drop.
  • Temperature range of 40-180°F
  • WQA tested and certified against NSF/ANSI 42 standard for material requirements.

We send you an email every 6 months to remind you to check your filter performance.

Why do I need to change the o-ring?

You can tell if the seals start leaking, which is obvious, I know.

Even if there are no leaks you may find that the profile of the O ring becomes flattened because of prolonged time under compression. The cross section should be round and if it's not it may not seal easily.

However, I recommend that you replace the O rings every two or three years as a precautionary measure.

One of the main reasons for changing O rings periodically is that as they age and compress, the housing bowl needs to be tightened excessively. That leads to difficulty loosening the bowl from the cap next time the cartridge needs to be replaced.

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