This item is a pre-owned, used, and refurbished to full capability. It is a Synrad brand air cooled laser 25 watt 48-2 model. It fits as a replacement for UNIVERSAL LASER SYSTEMS models ULS-25, ULS-25E, and ULS-1720c laser engraving machines with a 25 watt Synrad laser. It is the same laser as is installed in the machines, and gas refilled.
 
One year warranty on this laser.