Membranes, Caps & Fill Solutions


Hach membranes, caps, and fill solutions are essential components for dissolved oxygen (DO) probe maintenance used in BOD and COD testing applications, with service kits containing replacement membranes, electrolyte filling solution, and cleaning cloth for maintaining accurate oxygen measurements. These components work together in Galvanic or Clark-type electrodes that use an anode and cathode in an electrolyte solution to measure dissolved oxygen, which is critical for determining the biochemical oxygen demand (BOD) and chemical oxygen demand (COD) parameters that indicate organic pollution levels in water samples.

Hach Protector-calibration Flask for DO Sensor Light Version LZW5123.99
$33.55

Mfr. Part # LZW5123.99

Product # 703789

Hach Replacement Membranes for DO Probe, 5197300
$225.00

Mfr. Part # 5197300

Product # 702196

Hach Filling Solution, Internal, Polarographic DO, 50 mL, 2759126
$25.65

Mfr. Part # 2759126

Product # 701898

Hach Filling Solution, Internal, Polarographic DO, 30 mL, 2759123
$18.75

Mfr. Part # 2759123

Product # 701897

Hach Electrolyte Solution for 5120 DO Sensor, 25 mL, LZW9811.99
$71.55

Mfr. Part # LZW9811.99

Product # 703846

Hach LDO Calibration Cap, HQD Series, 5811200PC
$16.69

Mfr. Part # 5811200PC

Product # 702927

Hach IntelliCAL LBOD101 Sensor Cap Replacement Kit 5838000
$226.00

Mfr. Part # 5838000

Product # 702295

YSI Replacement OBOD Sensor Cap Kit 626482
$149.95

Mfr. Part # 626482

Product # 706107

Thermo Scientific Orion Probe Maintenance Kit for Dissolved Oxygen Meters 080513
$294.00

Mfr. Part # 080513

Product # 706139

YSI Replacement Membrane Kit, 0.5 Mil PTFE Membrane, 098095
$101.95

Mfr. Part # 098095

Product # 706128

YSI Replacement Membrane Kit, 1.0 Mil PTFE Membrane, 098094
$74.10

Mfr. Part # 098094

Product # 706127

YSI 5909 Dissolved Oxygen Cap Membrane Kit 2.0 Mil Blue 605307
$80.75

Mfr. Part # 605307

Product # 706125

YSI 5914 Dissolved Oxygen Cap Membrane Kit 2.00 Mil Blue 605914
$85.50

Mfr. Part # 605914

Product # 706126

YSI Cap Membrane Kit, 1.25 Mil, 605913
$79.80

Mfr. Part # 605913

Product # 706005

YSI 5906 Cap Membrane Kit, 059880
$77.90

Mfr. Part # 059880

Product # 700130