For sale is one Coherent Krypton laser tube. It needs re-gassed but is otherwise intact and ready to use. This listing is for one krypton head ONLY. Let me know if you would be interested in both tubes. It is about 3-1/2' long and produces a maximum of 4 watts.The three main frequencies it produces are. There are several other lines it produces but are much lower output. The item "Coherent / Innova 90-MK Krypton Multiline Laser Head 4 Watts Max Light Show" is in sale since Tuesday, March 17, 2015. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Lab Equipment\Lab Lasers & Photonics". The seller is "73440chall" and is located in York, Pennsylvania. This item can be shipped to United States, Russian federation, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, China, Sweden, South Korea, Indonesia, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Switzerland, Jamaica.