How many people does the Catalina Spas 18' Marathon Dual Temp seat?

The Catalina Spas 18' Marathon Dual Temp seats 7 people comfortably.

What are the dimensions of the Catalina Spas 18' Marathon Dual Temp?

The Catalina Spas 18' Marathon Dual Temp measures 211"x90"x54" and holds approximately 2450 gallons of water.

What voltage does the Catalina Spas 18' Marathon Dual Temp require?

The Catalina Spas 18' Marathon Dual Temp runs on 220v.

Where can I buy the Catalina Spas 18' Marathon Dual Temp?

The Catalina Spas 18' Marathon Dual Temp is sold through authorized Catalina Spas swim spa dealers. Hot Tub Hunt shows your nearest verified dealer along with regional pricing data when available.

18' Marathon Dual Temp

Catalina Spas

Last updated: September 2026

What Buyers Are Paying

Price on request — contact a dealer for a quote.

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Key Specifications

Seats

Dimensions

211"x90"x54"

Volume

2450 gal

Zones

Dual Zone

Performance Ratings

Swim Level

Recreational

Propulsion

Jetted (Air Induction)

Full Specifications

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How much does the Catalina Spas 18' Marathon Dual Temp cost?

Catalina Spas does not publish a list price for the 18' Marathon Dual Temp; what you pay is set by your local authorized dealer and the package they bundle with it.

Specs driving that price: 5 pumps, a 211"x90"x54" footprint, 220v power. Larger cabinets, more pumps and higher jet counts push both list price and running cost up.