Yes, since the outer diameter of the bayonet fitting of the Quick Drain RV Sewer # D04-0121 is 3-1/2 inches it will easily fit in the 4 inch square bumper of your RV.
I attached a review video for this hose for more info for you to check out as well. view full answer...
According to my research your 2018 Prime Time Avenger 27BHS should have a 16' wide awning so you'll need one of the following Solera Family Rooms:
- Tan Mesh # LC362219
- Gray # LC362231 view full answer...