Calibration Gas for RKI Instruments Multigas Monitors

Calibration Gas for ALL RKI Instruments Portable Gas Monitors.

Size:  Chose from 34, 58 or 116 Liter Size Refillable Bottles  

Concentration:  12% O2, 25 ppm H2S, 50 ppm CO and 50% LEL Methane (2.5% Vol)

Shelf Life:  24 Months

These are the Special “PortaGreen” Refillable Cylinders. It even includes a return shipping label.

PortaGreen provides a hassle free cylinder return program designed to reduce HAZMAT costs and your carbon footprint.

• Eliminates HAZMAT Liability
• No Disposal or Return Fees
• Reduced Cylinder Footprint
• Increased Shelf Life
• Easy To Return
• All blends available

Here is a link to learn more. http://www.portagas.com/products/portagreen/