Soap Connoisseur Achievement in PowerWash Simulator

There are six cleaning liquids in all that slowly become available as you work through a few of the opening levels of PowerWash Simiulator's career. They are:
 

• Glass Cleaner ($10.00)
• Metal Cleaner ($10.00)
• Plastic Cleaner ($10.00)
• Stone Cleaner ($10.00)
• Multi-Purpose Cleaner ($10.00)
• Wood Cleaner ($10.00)

Simply own one of each at the same time (as in, in your inventory), and this achievement is yours.