Shop › Waltron Phosphate Calibration Standard, 2ppm, 2L P/N: W1234-106 Image 1 of 1 Waltron Phosphate Calibration Standard, 2ppm, 2L P/N: W1234-106 $44.00 Add To Cart Added! Product Number: W1234-106Calibration solution for Waltron 3042 and 3142 Phosphate Analyzers, low range. Product Number: W1234-106Calibration solution for Waltron 3042 and 3142 Phosphate Analyzers, low range. You Might Also Like Hach 5500sc Standard 1 Low Range Phosphate 2L P/N: 6776002 $183.00 Mettler Toledo Reagent Kit Si+PO4 500 mL P/N: 30571929 $775.00 Hach 5500sc Standard 2 Low Range Phosphate 2L P/N: 6775602 $183.00 Swan AMI Sample Sequencer P/N: A-82.611.060 $12,154.00 Swan Analyzer AMI Phosphate HL P/N: A-25.421.300.0 $20,950.00