Normally the Tee goes between the tank and the regulator. You would use the hose you looked at, part # 100476-120-MBS, and a Tee that has a quick disconnect fitting like part # 103537-MBS. This would connect to an appliance that normally connects to a 1 pound disposable tank. Such appliances normally have their own regulator and you'd be all set.
If your grill doesn't have its own regulator then this setup isn't going to work for you. view full answer...
When it comes to flat towing your 2021 Kia Forte GT with a manual transmission can be flat towed. Below is a list of flat towing items that you will need.
The Blue Ox Base Plate Kit - Removable Arms # BX2728
Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar for Blue Ox Base Plates - RV Mount - 8K # RM-677
Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152
RoadMaster 6-Wire Trailer Connector - Vehicle End # RM-910030-7
Brake Buddy Select 3 Portable Supplemental Braking System... view full answer...
Assuming your Tiffin Allegro Red 36QSA is built on the Freightliner 'XC' chassis, you'll need the Roadmaster
# RM-RBK18-RSSA steering stabilizer.
A steering stabilizer will help you retain control of the vehicle when you're dealing with crosswinds, ruts, tire blowouts and riding the edge of the pavement. It'll also help the steering wheel return to center after completing turns.
I've linked to an install/demonstration video showing the system bein installed on a 2016 model Tiffin Allegro... view full answer...