Skip to content
About Us Customer Reviews Why Buy From Us Price Match Request a Quote Purchase Orders FSA/HSA Financing Contact Us
SunRay HL400K Sequioa Front View

Call For Today's Best Deal: (844) 777-9754

SunRay Sequioa 4 Person Infrared Sauna HL400K

$4,298.00
$4,298.00 - $4,298.00
$4,298.00
$6,447.00
$6,447.00 - $6,447.00
$6,447.00
Free Shipping Icon
Free Shipping, Always
Ships in 3-5 business days via LTL/Freight with Curbside Delivery. Click here to learn more.
Customer Reviews Icon
Trusted by 10,000+ Customers
From first-time buyers to full gym builds — see how we’ve delivered.
Flexible Payments Icon
Pay How You Want
Credit card, Shop Pay, PayPal, Bread, HSA/FSA with TrueMed and more!
Contact Us Icon
Talk to a Real Person
Building out a gym? Don’t guess. Call or text (844) 777-9754 or message us — we’ll help you get it right.

View all SunRay Saunas

The Sequioa HL400K 4 Person Infrared Sauna by SunRay Saunas

If you are looking for a spacious sauna for family and friends to relax in comfort, the SunRay Sequoia is for you

The Seqouia is a 4-person FAR infrared cedar sauna with 10 carbon nano heaters for quickly getting the sauna to your desired temperature while evenly dispersing the heat throughout the spacious cabin

The Sequoia is a fully loaded sauna featuring movable ergonomic backrests for maximum comfort, 7-color chromatherapy lighting, oxygen ionization system for purifying the air, recessed interior and exterior lighting, FM radio w/CD and MP3, cup holders, and more

The Sequoia is easy to assemble and the all natural Canadian red cedar wood will enhance any decor

SunRay HL400K Sequioa Features

  • 10 Carbon-Nano FAR Infrared Heaters - Advanced carbon-nano heaters provide smooth evenly dispersed heat with virtually no EMF
  • Solid Canadian Red Cedar wood - Smooth and naturally appealing yet durable with a pleasant aroma
  • 7 Year Structural Warranty - Guaranteed against defects in materials and workmanship for a full 7 years
  • ETL/CSA Certified - Meets all US and Canadian electrical safety standards - 120V, 20 amp plug
  • Dimensions: 69" x 53" x 75"

SunRay HL400K Sequioa Owner's Manual

SunRay Sequioa 4 Person Infrared Sauna HL400K Manuals and Assembly Info

Most of our equipment requires some level of assembly, and many customers choose to handle this themselves using the included manual.

Assembly Services: We partner with installers who can assist with in-home or commercial setup. Learn more.

Need a quote? Contact us at info@strengthwarehouseusa.com or call +1 (844) 777-9754.

SunRay Sequioa 4 Person Infrared Sauna HL400K Warranty

Every product we sell at Strength Warehouse USA is brand new and backed by the full manufacturer’s warranty. We’re an authorized dealer for every brand we carry, so your purchase is fully protected.

Have a question about warranty coverage before you buy? Just reach out — we’re happy to walk you through the details.

SunRay Sequioa 4 Person Infrared Sauna HL400K Customer Reviews

Let’s Talk

Build a Space Worth Training In

From garage gyms to full-scale commercial builds, we help you get the right equipment, layout, and support — no fluff, just results.

  • Proven to Deliver

    Over 10,000 customers served — from first-time home gym owners to major commercial builds.

  • Built to Fit

    No cookie-cutter setups. We help tailor the right layout, brand mix, and delivery plan for your goals.

  • Everything You Need, Nothing You Don’t

    We’ll tell you what’s worth it, what’s overkill, and what’ll actually make a difference in your training.

  • Straight-Up Support

    We don’t disappear after checkout. You get updates, help, and a real rep you can reach.

“My experience with Strength Warehouse USA was exceptional. They delivered on time, communicated clearly, and helped me through every step of the setup.”

- Garfield B., Apr 2025

“We just set up our equipment! Everything came well-packed and quicker than expected. Customer service was fantastic throughout.”

- Patricia P., Mar 2025

“Super fast shipping, personal and fantastic service. Highly recommend. If I need anything else, I’ll be coming back.”

- Aslyn V., Nov 2024

“Great communication, timely updates, and a team that clearly knows their stuff. Strength Warehouse was easy to work with from start to finish.”

- Jason D., Aug 2024

Build Your Dream Gym — Contact Us

“My experience with Strength Warehouse USA was exceptional. They delivered on time, communicated clearly, and helped me through every step of the setup.”

- Garfield B., Apr 2025

“We just set up our equipment! Everything came well-packed and quicker than expected. Customer service was fantastic throughout.”

- Patricia P., Mar 2025

“Super fast shipping, personal and fantastic service. Highly recommend. If I need anything else, I’ll be coming back.”

- Aslyn V., Nov 2024

“Great communication, timely updates, and a team that clearly knows their stuff. Strength Warehouse was easy to work with from start to finish.”

- Jason D., Aug 2024