8 Person Octagonal Hot Tub

The Hot Tub That Actually Brings People Together

The Monarch’s blends classic design with modern durability and longevity. Eight seats arranged around a central jet create natural conversation zones. The free-form layout lets guests move around, switch spots, and actually connect—the way gathering spaces should work.

Kids love it. Guests remember it. The Monarch becomes the focal point that keeps gatherings interesting long after the novelty of “sitting in hot water” wears off. At 550 gallons with a 98 x 98 inch footprint, this is Royal Spa’s largest-footprint model—room for everyone without feeling cramped.

Two Ways to Own a Monarch

Industry Standard delivers Royal Spa quality at entry price—same 40-year structural warranty, same Indianapolis manufacturing, same local service and support. Hybrid adds a three-pump efficiency system that saves over $1,000 yearly while running quieter and lasting decades longer than conventional hot tubs. Choose based on how long you plan to keep it and how often you’ll use it.

Built in Indiana Since 1981

Royal Spa manufactures every Monarch at our Indianapolis facility using standard, serviceable components any qualified technician can repair. No proprietary parts. No weeks waiting for shipments from overseas. Bio-Lok® Microbe Shield and ozone purification reduce chemical needs. The only hot tub engineered to safely accommodate Epsom salt—proof of materials quality that competitors can’t match. Customize with shell colors, cabinet finishes, LED lighting, waterfalls, or stereo systems.

Royal Spa products promote relaxation and general wellness. Not intended to diagnose, treat, cure, or prevent any disease.

Monarch FAQs

How big is the Monarch?

The Monarch seats 8, holds about 550 gallons of water and can be configured with up to 36 jets. Its cabinet measures about 98″ x 98″ x 38.5″ (W x L x H). See how it compares with other models in our hot tub model comparison.

What builds are available for the Monarch, and what does it cost?

The Monarch is offered in the Industry Standard and Hybrid builds. Listed pricing is $9,995 to $14,365 depending on build. Pumps range from 1 to 3 depending on build. For a full breakdown, read how much a hot tub costs.

Can I use Epsom salt in the Monarch?

Yes. Royal Spa hot tubs are built to be Epsom salt compatible. Learn more about Epsom salt in a Royal Spa hot tub.

What warranty comes with the Monarch?

40 years on the structure, 10 years on the surface and 3 years on parts.

Where is the Monarch made?

It is built by Royal Spa in Indianapolis, Indiana, where the company has manufactured hot tubs since 1981.

How soon can I get a Monarch delivered?

Delivery timing depends on the build you choose and the current schedule, so ask your showroom: Factory Showroom (Indianapolis), Avon or Pendleton Pike.