Nalgene Filter Holder with Receiver, PSF 47 mm, 293mm H x 134mm OD, 1000 ml Capacity (Case of 4): Science Lab Bottletop Filters: Amazon.com: Industrial & Scientific
Nalgene™ Reusable Bottle Top Filters
Filter holder with funnel, Nalgene® | VWR
300-4000 Thermo Scientific Nalgene FILTER FUNNEL, THREADED (Each of 1)