Assertion: pitcher's filter | /r/CapableOf | keep magnesium
Facets:
Source sentences:
text: The filter can remove contaminants while keeping some minerals such as magnesium and calcium that are considered good for health.
text: The patented filters remove 2000% more toxins than other leading brands, including chromium, lead, mercury, chloramines, and more, while maintaining the calcium and magnesium in your water.
text: However, the filter keeps healthy trace minerals such as calcium and magnesium in your water, so you’ll still get the health benefits from these minerals.