If it is like my 34J - there is NOT an adaptor that will fit. I tried to no avail - neither a 45 or 90 degree will fit. I purchased a flexible sewer hose (brown) from menards (or anywhere else) and keep it hooked up all the time. I then place it through the screw access and pull it to the dump station. Works very well.
The access is so far of center from the access panel it is ridiculous! THOR!!
2015 Thor Hurricane 34 J
Custom paint 2019 (Pro Custom Inc., Elkhart, IN)
2019 Honda Accord 2.0T Sport 6 speed manual