Premium 400 4-Person Plug and Play Standard Hot Tub with 20 Stainless Jets, Heater, Ozone and LED Waterfall in Keystone
Premium 400 4-Person Plug and Play Standard Hot Tub with 20 Stainless Jets, Heater, Ozone and LED Waterfall in Keystone
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Premium 400 4-Person Plug and Play Standard Hot Tub with 20 Stainless Jets, Heater, Ozone and LED Waterfall in Keystone

|3 ratings
Premium 400 4-Person Plug and Play Standard Hot Tub with 20 Stainless Jets, Heater, Ozone and LED Waterfall in KeystoneAquarest Spas AR 400 Premium 4 Person 20 Jet Plug And Play with Ozonator LED waterfall KeystoneAquarest Spas AR 400 Premium 4 Person 20 Jet Plug And Play with Ozonator LED waterfall Graystone
Actual ColorKeystone

Key item features

  • Comfortable Seating: This spa comfortably seats four people with barrier-free seating, offering therapeutic lumbar arch support and multi-level jet placement for targeted muscle relief.
  • Powerful Jets: It features 20 upgraded stainless-steel hydrotherapy jets with dual side air controls, providing a customizable massage experience.
  • Durable Construction: The hot tub boasts a tough, impact-resistant polyethylene shell that is virtually indestructible, ensuring long-lasting durability.
  • Advanced Filtration: The EZ Klean Filtration System provides 100% water filtration, complemented by an upgraded ozonator that reduces the need for sanitizers by up to 75%.
  • Convenient Power: This 120-Volt/15A plug and play ready spa can be converted to 240-Volt/4kW with a 30 or 50A electrical service, and is fully insulated for energy efficiency.
  • Ambient Lighting: A patented multi-color LED backlit cascading waterfall offers nine colorful light settings to create a perfect ambiance.
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3.7 out of 5 stars
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3 ratings2 reviews
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  1. 5 stars67% (2)
  2. 4 stars0% (0)
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  5. 1 star33% (1)
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Showing 1-2 of 2 reviews

Oct 7, 2023
Reviewer name: Kromrider
Sold byClearwaterPoolandSpa.Online
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Nice little hot tub

Price was reasonable. We received the hot tub much sooner than estimated. Driver was very cool. It was not as hard to move around as I thought. Set up was fairly simple aside from the panel screws and the clips for the cover. They were a little annoying to install. I've been in the hot tub just about every day since I bought it. It has worked flawlessly. The ozone system allows me to use only a little chlorine to keep the water crystal clear. It is a huge step up from an inflatable tub. I love that it was made in the USA. I highly recommend this product.

Helpful?2PJQHWC84GQG2781705743
Oct 18, 2025
Reviewer name: Alta
Item details
Color: Graystone
Sold and shipped byClearwaterPoolandSpa.Online
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Nonfunctional %26 Expensive Disappointment

Set up the spa last weekend. Following directions carefully, but spa is non-functional: throws Sn code unrelentingly, making the water cold and the spa useless. Carefully followed all troubleshooting steps, up to and including unplugging/replugging temp sensors and even purging the pump, but to no avail. We'll see what customer service/warranty responses are (none yet), but as of today I do not recommend - don't waste your money on an expensive product that doesn't work. :(

Incentivized Review
Helpful?2PJQHWC84GQG2781705743
Current price is Now $3,144.00
You save $1,055.00
was $4,199.00
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