Solinst 408 Double Valve Pump Configuration:Mk3 5/8" Stainless Steel x 1ft • Leaves no residue after

• Leaves no residue after rinsing

and research sampling programs

N-type batteries and KCl / 442 calibration solutions for this pen are listed in Myron L Parts & Accessories

• DO readings are automatically compensated for salinity

Solinst 408 Double Valve Pump Configuration:Mk3 5/8" Stainless Steel x 1ft • Leaves no residue afterThe 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