EXTRA-LARGE BATHING SPACE
ST-3660 Extra-Large Inward Opening Walk-In Tub
The SteadyTub ST-3660 is a 36″ × 60″ × 40″ inward-opening walk-in tub with a spacious bathing area, built-in seat, and FRP fiberglass construction.

A Spacious 36 × 60-Inch Format
The ST-3660 combines a 36-inch width and 60-inch length in an inward-opening walk-in tub with a spacious bathing area.
The 36 × 60-inch format gives distributors, contractors, and bathroom brands a clearly defined extra-large model for product-range and sourcing evaluations.
Confirmed Product Specifications
| Model | ST-3660 |
| Product Type | Inward Opening Walk-In Tub |
| Overall Dimensions | 36” × 60” × 40” |
| Door Type | Inward Opening |
| Material | FRP Fiberglass |
| Nominal Full-Tub Capacity | 118 Gallons* |
| Seat | Built-In Seat |
| Seat Size | 25” × 21” × 17” |
| Grab Bar | Standard |
| Service Panel | Yes |
| Voltage | 110V / 220V Available |
*Nominal full-tub capacity refers to the empty tub filled to full capacity.
Inward-Opening Door and Built-In Seat
The ST-3660 features an inward-opening door and a built-in seat within its 36″ × 60″ × 40″ overall format.
The built-in seat measures 25″ wide × 21″ deep × 17″ high.
FRP Fiberglass Construction
The ST-3660 is manufactured in FRP fiberglass and includes a standard grab bar and service panel.
Electrical configurations are available in 110V and 220V. Configuration requirements can be reviewed as part of the quotation process.
Discuss Your Product and Sourcing Requirements
Share your target market, estimated quantity, required configuration, and project details. The SteadyTub team will review the inquiry and respond with the relevant next steps.
