ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System
ST3 Tether System

ST3 Tether System

 

Overview What’s Included Cord & Install Info Compare Models

Train Harder. Swim Smarter.

The ST3 Swim Tether features a triple FlexRod design for maximum lift and smooth resistance. It’s ideal for swimmers who want a more natural body position and a better training experience—without relying on jets.

  • Triple Rod System for lift and stability
  • ComfortFit Belt for secure, chafe-free fit
  • Built in the USA with premium, durable materials
  • Sets up in under 30 minutes

What’s in the Box

  • ST3 FlexRod Assembly (3 rods)
  • Adjustable ComfortFit Belt
  • Stretch Cord + Carabiner (choose your length)
  • Premium Carry Bag

All components are precision-machined, UV-coated, and corrosion-resistant for long-lasting performance.

Cord Selection & Installation

Choosing the Right Cord

Cord length depends on your pool setup, install location, and swimmer size. Stretch cords extend roughly ⅓ beyond their resting length.

  • 4.5 ft – Swim spas under 10 ft
  • 6 ft – Pools under 14 ft
  • 8 ft – Most standard pools
  • 15+ ft – Extended installs or large pools

Installation Options

Base plate installs in under 30 minutes. Choose the one that matches your deck:

Need help? View the full Installation Guide.

Not Sure if ST3 is Right for You?

Compare all Swim Tether models side-by-side to find the best fit for your pool and goals.

→ Compare Models

 

Quick Specs

Overall Height 69.38 in
Height Above Base 66.75 in
Rod Material UV-coated fiberglass (3 rods)
Belt Type Adjustable ComfortFit for waist circumference 24 to 60 in
Cord Stretch ~33% of static length
Install Time Under 30 minutes
Warranty 1-Year Reliable Performance Guarantee
$289.95 $259.95 Save $30.00
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Customer Reviews

Based on 42 reviews
98%
(41)
2%
(1)
0%
(0)
0%
(0)
0%
(0)
94.6
100.0
A
Anonymous (Dallas, TX)
Tell us how likely you are to recommend Swim Tether to others—based on your install, performance, and overall experience.:
0 - Not at all confident
10 - 100% would recommend
Installed this to my fence.

Used 2’ long, 1” PVC pipe. Attached to fence using electrical conduit clamp and secured with 3” wood screws into fence posts. Solid. Didn’t need to drill into my travertine. Can remove rod as needed. Tether works as advertised. Awesome.

A
Anonymous (Atlanta, GA)
Tell us how likely you are to recommend Swim Tether to others—based on your install, performance, and overall experience.:
0 - Not at all confident
10 - 100% would recommend
We’re always improving. If anything felt unclear or could be better, let us know.: We just bought our first new pole and were surprised it didn’t fit our old holder. That should be explained in the product description.
A workout without a lap pool

We have been using Swim Tether for about 10 years. W purposely built a small pool to use with the tether. We enjoy our swim workouts and are very happy with the product.

D
David (Palm Beach Gardens, FL)
Tell us how likely you are to recommend Swim Tether to others—based on your install, performance, and overall experience.:
0 - Not at all confident
10 - 100% would recommend
What did you like most—easy setup, sturdy design, swim experience, or something else?: Customer service; the value.
Sharing your setup helps others find the right fit.: Drilled a hole in the patio.
Excellent product

This is the best option for those of us who want a pool workout without having to spend thousands on a water jet device. The tether is strong and works very well. The customer service is excellent. The owner of the company really cares about his customers.

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