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Since 1966, we have been a leading spa manufacturer in the United States. Located in Dewitt, Iowa, we are a U.S. manufacturing plant dedicated to manufacturing quality hot tub spas. We have always believed in the power of American craftsmanship and innovation.
We use American components whenever possible. We are always searching out and testing improved technologically, advanced spa parts and processes. Our goal is to provide you with the ultimate spa experience at a competitive price. Our hot tubs are manufactured to the highest standards and tested for quality by ETL for your safety and peace of mind.
Many of our features and processes are patented and only available through Grand Lakes Spas. Our Midwest work ethic and decades of experience can provide you with the best built spas around. Learn for yourself why we have such a loyal following. Even though our spas are sold around the world, they will always be built right here – where we started over 55 years ago.
GRAND LAKES SPA MODELS
G636L
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5 Person Lounger Spa
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78”L x 78”W x 36”D
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36 Therapeutic Stainless Steel Jets
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(1) 5.2 BHP Hi Flow 2-Speed Pump
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Dual Air Controls
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Molded Headrests
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Water Feature
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Dual Adjustable Collar Jets
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Foot Jets
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5.5 KW Heater
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220 Volt System, Requires a 50 Amp GFCI Installed
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by an Electrician (Not Included)
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Patented Dura-Bond Acrylic Shell
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Weather Guard Maintenance-Free Cabinet
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Automatic Filtration Cycle and Built-In Filter
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Energy Saver System
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LED Lighting
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Ozone Included
G641B
G641B
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6 Person Non-Lounger Spa
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78”L x 78”W x 38”D
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41 Therapeutic Stainless Steel Jets
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(1) 5.2 BHP Hi Flow 2-Speed Pump
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Dual Air Controls
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Molded Headrests
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Water Feature
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Dual Adjustable Collar Jets
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5.5 KW Heater
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220 Volt System, Requires a 50 Amp GFCI Installed
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by an Electrician (Not Included)
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Patented Dura-Bond Acrylic Shell
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Weather Guard Maintenance-Free Cabinet
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LED Lighting
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Ozone Included​
G728B
G728B
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8 Person Non-Lounger Spa
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82”L x 82”W x 36”D
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28 Therapeutic Jets *
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(1) 5.2 BHP Hi Flow Pump
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Air Control
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Molded Headrests
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4 KW Heater
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220 Volt System, Requires a 50 Amp GFCI Installed
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by an Electrician (Not Included)
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Patented Dura-Bond Acrylic Shell
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Weather Guard Maintenance-Free Cabinet
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LED Lighting
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Ozone Included​
*COMES WITH GRAPHITE GRAY JETS
G746L
G746L
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5-6 Person Lounger Spa
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85”L x 85”W x 40”D
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46 Therapeutic Stainless Steel Jets
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(2) 5.2 BHP Hi Flow Pumps
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Dual Air Controls
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Molded Headrests
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Single Reversible Lounger
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Captain’s Chair
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Dual Adjustable Collar Jets
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Water Feature
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5.5 KW Heater
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220 Volt System, Requires a 50 Amp GFCI Installed
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by an Electrician (Not Included)
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Patented Dura-Bond Acrylic Shell
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Weather Guard™ Maintenance-Free Cabinet
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Energy Saver System
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LED Lighting
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Ozone Included​
G745B
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​6 Person Non-Lounger Spa
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85”L x 85”W x 40”D
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45 Therapeutic Stainless Steel Jets
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(2) 5.2 BHP Hi Flow Pumps
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Dual Air Controls
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Molded Headrests
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3 Captain’s Chairs
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Dual Adjustable Collar Jets
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Water Feature
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5.5 KW Heater
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220 Volt System, Requires a 50 Amp GFCI Installed
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by an Electrician (Not Included)
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Patented Dura-Bond Acrylic Shell
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Weather Guard Maintenance-Free Cabinet
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Energy Saver System
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LED Lighting
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Ozone Included
G745B
G845B
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8 Person Non-Lounger Spa
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92”L x 92”W x 40” D
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45 Therapeutic Stainless Steel Jets
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(2) 5.2 BHP Hi Flow Pumps
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Dual Air Controls
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Molded Headrests
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3 Captain’s Chairs
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Dual Adjustable Collar Jets
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Tactile Foot Massage Dome
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5.5 KW Heater
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220 Volt System, Requires a 50 Amp GFCI Installed
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by an Electrician (Not Included)
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Patented Dura-Bond Acrylic Shell
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Weather Guard Maintenance-Free Cabinet
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Energy Saver System
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LED Lighting
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Ozone Included​
G845B
G621L
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3 Person Non-Lounger Spa
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78”L x 60”W x 34”D
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20 Therapeutic Stainless Steel Jets
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(1) 3 BHP Hi-Flow Pump
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Air Control
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Dual Adjustable Collar Jets
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Patented Dura-Bond™ Acrylic Shell
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Weather Guard™ Maintenance-Free Cabinet
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Automatic Filtration Cycle and Built-In Filter
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Energy Saver System
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110V/1 KW Heater Convertible to 220V/4 KW Heater Installed by an Electrician (Not Included)
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110 Volt Plug & Play System, Includes
15’ GFCI Protected Cord -
LED Lighting
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Ozone Included​
G621L
G624
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4 Person Non-Lounger Spa
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78”L x 60”W x 34”D
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23 Therapeutic Stainless Steel Jets
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(1) 3 BHP Hi-Flow Pump
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Air Control
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Molded Headrests
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Dual Adjustable Collar Jets
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Patented Dura-Bond™ Acrylic Shell
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Weather Guard™ Maintenance-Free Cabinet
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Automatic Filtration Cycle and Built-In Filter
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Energy Saver System
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220V/4 KW Heater Installed by an Electrician (Not Included)
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110 Volt Plug & Play System, Includes
15’ GFCI Protected Cord -
LED Lighting
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Ozone Included
G624
G611B
G611B
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4 Person Rectangular Spa
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81”L x 57”W x 30”D
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11 Therapeutic Stainless Steel Jets
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(1) 3 BHP Hi-Flow Pump
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Air Control
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Molded Headrests
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Patented Dura-Bond™ Acrylic Shell
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Weather Guard™ Maintenance-Free Cabinet
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Automatic Filtration Cycle and Built-In Filter
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Energy Saver System
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110V/1 KW Heater Convertible to 220V/4 KW Heater
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Installed by an Electrician (Not Included)
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110 Volt Plug & Play System, Includes
15’ GFCI Protected Cord -
LED Lighting
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Ozone Included
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