About Us Why Buy From Us Customer Reviews Contact Us Request for quote
Skip to content

Call for Best Pricing on SunRay Saunas

Call (646) 657-8856 Send a Text
Wooden SunRay Grandby 300D3 with glass doors on a white background

SunRay Grandby 300D 3-Person Outdoor Infrared Sauna with 7 Heaters

by SunRay Saunas
Save 33%
$5,985.00
$3,990.00 + Free Shipping

Notify me when back in stock

Order By

Order By

Calculating...

Preparing Order

Preparing Order

Calculating...

Est. Delivery

Est. Delivery

Calculating...

Free Shipping from Virginia

Free Shipping from Virginia

Ships fast in 2-3 weeks with appointment by freight delivery

Shipping & Tracking Info →

Trusted by Home & Commercial Gyms

Trusted by Home & Commercial Gyms

[See how people are upgrading their spaces]

Best Price Online Guaranteed

Best Price Online Guaranteed

No markups. No games. Just the best price.

Support Agent

Questions before you buy?

Text or call us — we’ll help you figure it out quickly.

646-857-8856

Enjoy Outdoor Infrared Sauna Therapy in a Space-Saving Design with the SunRay Grandby 300D

The SunRay Grandby 300D is a 3-person outdoor infrared sauna featuring a sealed weatherproof cabin, durable metal composite roof, and natural Canadian Hemlock construction. Equipped with seven far infrared heaters, Bluetooth audio, ozone sterilization, and spacious bench seating, it is designed to bring the benefits of infrared sauna sessions to your backyard year-round.

Wooden SunRay Grandby 300D3 with dimensions labeled on a white background

SunRay Grandby 300D 3-Person Outdoor Infrared Sauna Includes:

  • SunRay Grandby Sauna: 3-person outdoor infrared sauna cabin
  • Infrared Heating System: 7 integrated far infrared heaters
  • Metal Composite Roof: Weather-resistant roof assembly
  • LED Control Panel: Digital temperature and timer controls
  • Bluetooth Sound System: Built-in audio system
  • Ozone Sterilization System: Air purification technology
  • Interior Lighting: Recessed lighting package
  • Cup Holders: Integrated beverage holders
  • Owner's Manual: Assembly and operation instructions

SunRay Grandby 300D 3-Person Outdoor Infrared Sauna Features

  • Outdoor-Rated Construction: Sealed weatherproof cabin designed for long-term outdoor use.
  • Metal Composite Roof: Provides durable protection against rain, snow, and outdoor elements.
  • 7 Powerful Infrared Heaters: Quickly warms the sauna to temperatures up to 140°F.
  • 3-Person Capacity: Comfortable seating for individuals, couples, or small families.
  • Natural Canadian Hemlock Wood: Durable wood construction with an attractive natural appearance.
  • LED Control Panel: Easily adjust temperature and session settings.
  • Bluetooth Sound System: Stream music, podcasts, and relaxation audio directly from your device.
  • Ozone Sterilization System: Helps maintain a fresher interior environment.
  • Recessed Interior Lighting: Creates a comfortable and inviting atmosphere.
  • Wide Bench Seating: Designed for comfort during longer sauna sessions.
  • Compact Outdoor Footprint: Fits comfortably on patios, decks, and backyard wellness spaces.

Installation Considerations

  • Requires a level, reinforced outdoor surface
  • Dedicated 120V, 20-amp circuit required
  • Professional electrical installation recommended
  • Ensure adequate access for delivery and assembly
  • Allow sufficient clearance around the sauna and roof structure
  • Outdoor location should provide proper drainage

SunRay Grandby 300D 3-Person Outdoor Infrared Sauna Specs

  • Model: Grandby 300D
  • Capacity: 3 Persons
  • Sauna Type: Outdoor Infrared Sauna
  • Wood Type: Natural Canadian Hemlock
  • Heaters: 7 Far Infrared Heaters
  • Maximum Temperature: 140°F
  • Exterior Dimensions: 69" W x 47" D x 87" H
  • Roof Dimensions: 79" W x 61" D x 87" H
  • Interior Dimensions: 55" W x 43" D x 68" H
  • Product Weight: 425 lbs
  • Control System: LED Control Panel
  • Audio System: Bluetooth Sound System
  • Lighting: Recessed Interior Lighting
  • Air Purification: Ozone Sterilization System
  • Electrical Specifications: 120V / 20 Amp / 2100 Watt
  • Certification: ETL and CSA Certified

SunRay Saunas Warranty

Manufacturer Warranty: 7 Years

Coverage: Defects in materials and workmanship

SunRay Grandby 300D 3-Person Outdoor Infrared Sauna Resources

Owners Manual 

Warranty Page

Frequently Asked Questions

  • Yes, free shipping on all orders. Larger items ship via freight to your curb. Inside delivery and installation available for an additional fee, call/text (646) 657-8856 or chat with us.
  • Most equipment requires basic assembly, instructions and hardware included. Professional installation available for an additional fee. For a quote, call/text (646) 657-8856 with your zip code, room location, and stair count.
  • 30-day returns on all equipment in unopened, original packaging. Restocking fees may apply. Contact us before returning: (646) 657-8856 or email - we're here to help!
  • All items are insured during shipping. If your equipment arrives damaged, text photos or call us immediately at (646) 657-8856. We'll arrange a replacement or repair at no cost.
  • All equipment includes manufacturer warranty. Check product specifications for details, or contact us at (646) 657-8856.
  • Yes, flexible payment plans available. Apply at checkout to see your options.
  • Yes, many products are HSA/FSA eligible with a letter of medical necessity from your healthcare provider. Select Trumed to generate one at checkout.

Need Help Choosing the Right Equipment?

Get expert guidance on selecting the right commercial or home fitness equipment for your space, budget, and performance goals.

Why Customers Choose Competitors Outlet

Build the Right Setup - Without Guesswork
We help you choose equipment that fits your space, training style, and long-term goals.

Make a Confident Investment
Avoid costly mistakes. Get clear, honest guidance so you buy once - and buy right.

Equipment That Actually Holds Up
We carry proven brands trusted in serious home gyms and commercial facilities.

Know Exactly What to Expect
From shipping timelines to white glove delivery, we walk you through the entire process..

Contact Info

(646) 657-8856
hello@competitorsoutlet.com
7 Days a Week

Send us a message