Solinst 408 Double Valve Pump Configuration:Oetiker Clamp Set (1/4" Double Ear, set of 10) Hard carrying case

Hard carrying case

4 mg/L NH4

Shallow Depth (includes depth sensor) — 4 or 10 meter lengths

It adds onboard data logging and internal battery power to the Aqua TROLL platform

Solinst 408 Double Valve Pump Configuration:Oetiker Clamp Set (1/4" Double Ear, set of 10) Hard carrying caseThe Solinst 408 Double Valve Pump is a pneumatically driven, positive displacement pump with a check valve at its base and another at its top, connected to the surface by separate drive and sample lines. During the drive phase, compressed gas sent down the drive line pushes the static water column downward, closing the bottom check valve and forcing water already in the pump chamber up through the top check valve to the sample line. Venting the drive