| 21. | Trendy patterned pillows are flanked by water filters and paint.
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| 22. | Other types of water filters remove impurities by chemical or biological processes described below.
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| 23. | The water filter probably has margins in the mid thirties.
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| 24. | The chemicals stick to the tiny carbon particles as water filters through the plant.
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| 25. | At Ace Pump Corp ., there is a six-week wait for gravity-operated water filters.
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| 26. | Manufacturers of hand-held water filters and freeze-dried food report soaring sales from first-time customers.
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| 27. | According to newer regulations, each washing machine is equipped with a waste water filter.
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| 28. | In recent years, because of water pollution, many have resorted to using water filters.
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| 29. | *I don't think he is plugging his water filter so much as flattering himself.
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| 30. | :I recently measured my pressure after installing a reverse osmosis water filter in my kitchen.
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