The pewag CL Dually Tire Chains # PWCL294S (1 set) come with 2 chains that fit dually setups, so you just need one set per axle. It looks like your 2023 Allegro Red 360 motorhome has 1 axle at the back so you just need the 1 set of these chains and you're good to go!
Please note it's always good practice to consult your owner's manual for any guidance on tire chain usage and safety for your specific vehicle. view full answer...