I designed this model using the camper sewage hose adapter as inspiration to be able to quickly connect my 3 inch heater hose from my hcalory ss2 diesel heater to my rooftop tent much faster and more securely eliminating the need for those screw type clamps even though i did try the wing nut style. The project includes both adapters as well as dust cover while storing or traveling. Printed in bambu pa6-cf and it has been fine even with the high heat of the heater. Happy printing and as always I love ya!