Source: cirosantilli/oxford-nanopore-river-bacteria/thermo-scientific-nalgene-polysulfone-reusable-bottle-top-filters

= Thermo Scientific Nalgene Polysulfone Reusable Bottle Top Filters
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https://www.fishersci.no/shop/products/nalgene-polysulfone-reusable-bottle%20-top-filters/10465781 (https://web.archive.org/web/20190907131756/https://www.fishersci.no/shop/products/nalgene-polysulfone-reusable-bottle%20-top-filters/10465781[archive])

This is where we poured the water. It was not large enough for the entire 1L sample, so we had to do it a few times.