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Great Northern Hot Tubs round spa
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ROOMY ROUND HOT TUB in CEDAR or REDWOOD

The Rubadub Tub® round wooden hot tub gives you room to s-t-r-e-t-c-h out and relax. With no foot well like spas, there's more room for feet and legs. Only the 44-inch deep Rubadub Tub® offers the total relaxation that portable spa users dream of! Custom sizes or different depth hot tub & spas available. See pricing on extra deep and therapy wooden hot tubs and spas.

Standard Size

Adult Occupancy Water Capacity
(44' depth)
Tub Weight Dry
3' dia. 1 141 gal. 101 lb.
4' dia. 2-3 262 gal. 135 lb.
5' dia. 4-6 420 gal. 170 lb.
6' dia. 6-8 615 gal. 195 lb.
7' dia. 8-10 869 gal. 255 lb.
8' dia. 10-12 1117 gal. 295 lb.
9' dia. 12-14 1424 gal. 334 lb.
10' dia. 14-16 1769 gal. 373 lb.
11' dia. 15-17 2150 gal. 412 lb.
12' dia. 16-18 2569 gal. 451 lb.

Rubadub Tub® Round Wooden Hot Tub

Rubadub Tub®-a round hot tub in cedar or redwood that's portable, fully lined & insulated with the aesthetics, depth and leg room of a traditional hot tub.

The Rubadub Tub®, a unique Round Wooden Hot Tub. Great Northern® created the Rubadub Tub® in the mid-seventies. It is the world's first lined and fully insulated portable hot tub spa that retains the aesthetics, depth, and leg room of the traditional wooden hot tub. Inside the beautiful cedar or redwood wood exterior is a smooth, water tight shell of Poly-Tex. Often mistaken for vinyl that some manufacturers use, Poly-Tex is actually a thicker, more durable and easy-to-clean high molecular weight thermoplastic. It's more like acrylic, yet it's pliable! And it's backed by a 10-year warranty.

FLEXIBLE HOT TUB FEATURES

Designed with the customer in mind, the Rubadub Tub® round hot tub offers flexibility. For example, you can locate the seats at one or more levels so each person has hot water over their shoulders, right where the aches and pains are. Place jets where most needed to provide therapy for feet, shoulders, or back. Just about anything's possible with this hot tub! Finally, therapy the way you want it!
Rubadub Tub round wooden spa drawing

PORTABLE HOT TUB THAT'S TRUELY PORTABLE!

Unlike spas, the Rubadub Tub® wooden hot tub fits through doorways and down staircases. How? Simple! It comes in an easy-to-assemble kit that's a snap for the do-it-yourselfer or your installer. If you're on the move, the Rubadub Tub® tags right along. Weighing only a fraction of other spas, it easily slips through doorways and down basement steps by temporarily reshaping into a 26-inch wide oval. Compare that to the 700-900 pound, rigid and cumbersome so-called "portable spas"!

ONLY THE BEST HOT TUB EQUIPMENT & FEATUES

We carefully studied all Hot Tub Support Systems and concluded that any shortcuts in this department were false economy. We wouldn't settle for portable sized pumps, suction filters, or ineffective heaters. Only the best equipment is good enough for the Rubadub Tub®. Our systems are engineered with matched and tested components, including a hi-performance, energy efficent, two-speed jet pump, pressure filter, dual voltage electric heater (gas and wood fired heaters available), adjustable hydro-therapy jets, plumbing kit, chemicals and test kit. And you can customize your system with more jets, air bubblers, etc. for even more therapy.

PRICE BONUS YOU DON'T SEE

A significant part of your hot tub's price is the cost of running it. Other guys don't like to talk much about this. We love to! Here's why. Covering the entire floor, and sandwiched between our Poly-Tex inner shell and the structural wooden skirt, is a blanket of flexible foam insulation. The result is a luxuriously soft interior for your hot tub. But more importantly, you get a huge savings compared with the energy costs of ordinary systems!  The Rubadub Tub® is for the energy conscious, which means you'll continue to save money long after the sale, with years and years of low-cost operation.
Rubadub Tub wooden spa drawing