GASTEC Detector Tube: COS, Gas Detection Tube, Carbonyl Sulfide ( COS ), With Pump
The GASTEC Detector Tube: COS (MPN 21LA) is a gas detection tube for carbonyl sulfide, designed for use with GASTEC GV-100 and GV-110 pumps. Each pack contains 5 calibrated tubes with a measurement range of 2 to 125 ppm.
SKU 3G-OTH-553122
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Product Description
The GASTEC Detector Tube: COS (MPN 21LA) is a gas detection tube for carbonyl sulfide, designed for use with GASTEC GV-100 and GV-110 pumps. Each pack contains 5 calibrated tubes with a measurement range of 2 to 125 ppm.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the GASTEC 21LA detector tube used for?
The GASTEC 21LA detector tube is used to measure carbonyl sulfide (COS) concentrations in industrial environments. It is designed for use with GASTEC GV-100 and GV-110 pumps, providing calibrated readings from 2 to 125 ppm for safety monitoring.
What are the specifications of the GASTEC 21LA gas detection tube?
The GASTEC 21LA detects carbonyl sulfide (COS) with a measurement range of 2 to 125 ppm. Each pack contains 5 calibrated tubes for use with GASTEC GV-100 and GV-110 pumps. The manufacturer part number is 21LA.
Where to buy GASTEC 21LA detector tubes worldwide?
3G Electric supplies GASTEC 21LA detector tubes worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these calibrated COS detection tubes to your facility, regardless of location.
How to use the GASTEC 21LA tube with a GV-100 pump?
Break both tips of the GASTEC 21LA tube, insert it into the GV-100 pump inlet, and pull the handle fully to draw a sample. Follow the pump stroke count and read the concentration directly from the tube scale. Always refer to the GASTEC manual for precise steps.
GASTEC Products
3G Electric supplies GASTEC gas detection tubes for use in gastec gv-100 and gv-110 pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









