2024 Grand Design Solitude S-Class 3460FL vs 2025 Grand Design Reflection 337RLS

Detailed Comparison

Shopping for an RV and torn between the 2024 Grand Design Solitude S-Class 3460FL and the 2025 Grand Design Reflection 337RLS? We've put together a detailed spec comparison to help you decide.

The Grand Design Solitude S-Class 3460FL measures 37.5 ft in length at 11,700 lbs, compared to the Grand Design Reflection 337RLS's 42.0 ft and 11,100 lbs. GVWR ratings sit at 14,800 lbs and 13,700 lbs respectively.

Capacity-wise, expect to sleep 8 in the Grand Design Solitude S-Class 3460FL versus 7 in the Grand Design Reflection 337RLS. With 3 and 3 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Grand Design Solitude S-Class 3460FL carries 93 gal of fresh water, 78 gal gray, and 40 gal black. The Grand Design Reflection 337RLS offers 56 gal fresh, 47 gal gray, and 39 gal black. The Grand Design Solitude S-Class 3460FL has the edge for extended dry camping.

Budget-wise, the Grand Design Solitude S-Class 3460FL is listed at $136,000 compared to $141,000 for the Grand Design Reflection 337RLS.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

Take these specs as a starting point, then go see them in person — there's no substitute for stepping inside.