2025 Airstream Interstate 24GL vs 2024 Roadtrek Zion SRT

Shopping for an RV and torn between the 2025 Airstream Interstate 24GL and the 2024 Roadtrek Zion SRT? We've put together a detailed spec comparison to help you decide.

Specifications Comparison

Specification2025 Airstream Interstate 24GL2024 Roadtrek Zion SRTAdvantage
CategoryClass BClass B
Year202520242025 Airstream Interstate 24GL
Length22 ft21 ft
Width6.5 ft7.5 ft
Height9.5 ft10 ft
Dry Weight11,000 lbs10,200 lbs
GVWR13,500 lbs15,000 lbs
Sleeping Capacity242024 Roadtrek Zion SRT
Fresh Water34 gal26 gal2025 Airstream Interstate 24GL
Gray Water21 gal30 gal2024 Roadtrek Zion SRT
Black Water19 gal17 gal2025 Airstream Interstate 24GL
Fuel Capacity26 gal28 gal2024 Roadtrek Zion SRT
Horsepower188 hp188 hpTie
EngineMercedes-Benz 3.0L V6 Turbo DieselMercedes-Benz 3.0L V6 Turbo Diesel
Slide-Outs00
Solar250 W400 W2024 Roadtrek Zion SRT
Battery500 Ah550 Ah2024 Roadtrek Zion SRT
Inverter2,000 W2,500 W2024 Roadtrek Zion SRT
MSRP$128,000$130,0002025 Airstream Interstate 24GL

Detailed Comparison

Shopping for an RV and torn between the 2025 Airstream Interstate 24GL and the 2024 Roadtrek Zion SRT? We've put together a detailed spec comparison to help you decide.

Starting with size, the Airstream Interstate 24GL measures 22.0 ft long and tips the scales at 11,000 lbs dry weight. The Roadtrek Zion SRT comes in at 21.0 ft with a dry weight of 10,200 lbs.

Capacity-wise, expect to sleep 2 in the Airstream Interstate 24GL versus 4 in the Roadtrek Zion SRT.

Tank capacities are a key off-grid consideration. The Airstream Interstate 24GL carries 34 gal of fresh water, 21 gal gray, and 19 gal black. The Roadtrek Zion SRT offers 26 gal fresh, 30 gal gray, and 17 gal black. The Airstream Interstate 24GL has the edge for extended dry camping.

Budget-wise, the Airstream Interstate 24GL is listed at $128,000 compared to $130,000 for the Roadtrek Zion SRT.

For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. For occasional getaways, the more affordable and nimble option usually makes the most sense. If you're hitting the road alone, ease of driving and parking often outweigh sheer size.

The numbers tell one story, but the feel of a floor plan is personal. Schedule a walkthrough before you decide.

Individual Overviews

2025 Airstream Interstate 24GL

  • Category: Class B
  • Length: 22 ft
  • Weight: 11,000 lbs
  • Sleeps: 2
  • MSRP: $128,000
View Full Specs

2024 Roadtrek Zion SRT

  • Category: Class B
  • Length: 21 ft
  • Weight: 10,200 lbs
  • Sleeps: 4
  • MSRP: $130,000
View Full Specs