square to 4 inch round Funnel Adpater for Danby AC

5-½ x 4-3/8 Rectangular exhaust port to 4 inch round vent pipe adapter, used for a Danby Standing Air Conditioner model dpa100b2wdb.

PRINT IN HIGH HEAT RESISTANT MATERIALS

PLA version lasted about 30 seconds before melting
PETG version melted after about 10 minutes
ASA has held on for the last 2 years without issues. 

Helps to also include/ Use Aluminum tape on the inside to help reduce the amount of heat entering the plastic.
Mechanically attached to 4 inch ducting swivel joints with 4" hose clamps.