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The filter unit has two small filters and is positioned at the end of the tubes from the peristaltic pump. One filter has holes that are 3 microns in size to filter for diatoms (clear filter on the left). The second filter is .2 microns in size to filter bacteria (white filter on the right). The pump in the previous pictures creates added force to push the water through the small pores. Aboard the Nathaniel B. Palmer.

Credit to Read: 
Photo by Cara Pekarcik (PolarTREC 2016), Courtesy of ARCUS
Photographer: Cara Pekarcik
Download: 
Image icon Download Pekarcik_P9150019.jpg (5.24 MB)
Category: 
Year: 
2016
Program: 
PolarTREC
Region: 
Southern Ocean
Topic: 
File Information
Focal Length: 
3.7mm
File Size: 
5491974
Computed Mime: 
image/jpeg
Max Aperture: 
f/3.5
Height: 
2592
Width: 
4608
Make: 
OLYMPUS IMAGING CORP.
Model: 
TG-860
Exposure Time: 
1/30s
ISO: 
500

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