The Doulton 7" Super Sterasyl Ceramic Filter Candle W9121200 features 1/4" Threads and fits Doulton Gravity Fed Systems GSS2, GSS3, and GSS4 as well as some HCP and HIP models that require 2" x 7" filter candles.
The W9121200 is NSF Certified Standard 42 & 53 for the reduction of:
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Taste & Odor 99.99%
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Particulates (rust, sand, sediment, algae) 99.99%
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Cyst (Cryptosporidium & Giardia) 99.99%
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Bacteria (e.Coli, Chlorea, Shigella, Salmonella) 99.99%
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Turbidity 99.69%
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Chlorine 50% (in pressure fed system)
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Chlorine 95% (in gravity fed systems)
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Guinea Worm 100%
The W9121200 SuperSterasyl Specifications :
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.4 GPM Flow Rate
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2" x 7" Dimensions
