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

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

Cord length depends on the ST model, pool setup, install location, and swimmer size.

Stretch cords extend roughly 30% beyond their resting length. For example: a 10 ft stretch cord measures approximately 13 ft when fully stretched.

Install Base Options

Installation typically takes less than 30 minutes. We offer two types:

  • Standard Base (non-threaded)– Installation in concrete, large pavers, natural stone
  • Threaded Base – Installation in wood/composite deck boards, fiberglass pools and acrylic swim spa shells.
Need help? View the 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

Regular price $289.95 Sale price$275.00 Save $14.95
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