I didn't want to buy a drain hose or cut up a garden hose so I designed and printed a connector instead.

Measuring:
Measure from the garden hose connection to the floor.  
The Top Hose is distance away from the dehumidifier.  Each Top Hose extends 3 inches down.
The Center Connectors and Bottom Hose include the height so you can combine them.  
The Center Connector goes over the top of the top and bottom parts and helps adjust the height so the measurement does not need to be perfect.

Printing Instructions:
Printed with PETG but PLA should be fine.
100% Infill
Supports needed for Top Hose Only, on Tray Only

Assembly:
Glue or screw together. I used Flex Seal I had to make it a water tight connection.