​Standard Features

  • Overall diameter is only 16.5 inches (42 cm), so GLS fits easily into manholes as small as 18 inches (46 cm), and also easily drops into most offset manh​oles.

  • Dry weight is less than 25 lbs (12 kg), the lightest sampler in the ISCO line.

  • Hinged handle makes one-handed carrying a breeze.

  • ​The patented LD90 Liquid Presence Detector and ISCO pump revolution counting system deliver accurate, repeatable sample volumes time after time.


Options and Accessories

  • Composite Sampling bottle configurations (1-gallon or 2.5 gallon glass or plastic; 2 gallon ProPak disposable sampling system)

  • Power sources

  • Suction lines and strainer​​​​​

​For a full list of product specifications, see the datasheet.


When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.