The Phytoplankton Sampler (PPS) collects filtered individual in situ particulate water samples onto 47mm filter media. Samples can be analyzed for trace metals, phytoplankton, and suspended particles. An in-line filtered water flush port protects the pump from large particle interference.

• Maximum depth: 5,500m.
• Number of samples: 24.
• Options: Fixative reservoirs on each sample.