Bariatric-width 36-inch tub with the roomiest seat in the line. 55" long by 35.75" wide by 40" high, 90-gallon soak.
| Model | Hydro Dimensions 3555 Plus |
|---|---|
| Series | HD Specialty Series |
| Length | 55" |
| Width | 35.75" |
| Height | 40" |
| Operating capacity | 90 gallons |
| Door | Inward-swinging door |
| Shell | Gel-coat fiberglass |
| Origin | Temecula, California, USA |
| Warranty | Lifetime warranty on shell, frame, finish, door seal, motors and controls |
Every Hydro Dimensions tub arrives as a complete soaker: low step-in entry door, built-in contoured seat, angled interior grab bar, chrome Roman faucet with a 5-foot handheld shower wand, drain kit and overflow, and a textured non-slip floor. Oil-rubbed bronze and brushed nickel faucet finishes are available for an additional charge.
Build your 3555 Plus: choose therapy, drag jets where you want them and get a spec sheet →
Straight from the factory drawing, every dimension exactly as published: top view, side and end elevations, drain and water line, door swing and extension panels. Tap to expand and zoom.
Contractors: measure the rough opening, drain location and door swing clearance off this sheet.
The 3555 Plus is 55 inches long and 35.75 inches wide. Measure the alcove length, width and the narrowest doorway on the path to the bathroom, then send us the numbers. Extension panels close the gap in a standard 60-inch alcove, and we confirm fit before you order.
The tub stands 40 inches high and holds about 90 gallons, so water reaches the chest of a seated bather rather than the waist. If you have a 40-gallon water heater, ask us about fill times.
No. Hydro and air systems are plumbed into the shell at the factory, so choose your therapy package when you order. Heated seat, chromatherapy and aromatherapy are chosen at the same time.
No. We ship supply-only anywhere in the U.S. and Canada (free shipping to the lower 48 on many models, freight quoted for Canada) and you keep the factory warranty when the tub is installed to specification, and it holds when you install it yourself, with a 1-year labor warranty on self-installs. Or our factory-certified installers handle everything, usually in one day.
The HydroDimensions 35” x 55” bariatric walk in tub is designed specifically for plus size bathers who need more interior room and a wider seat. Because comfort and fit matter, this model focuses on usable space rather than a one-size-fits-all approach. As a result, many customers choose this tub when standard walk in tubs feel too narrow.
This bariatric walk in tub fits well in both new construction and retrofit projects. In addition, its industry-standard length allows it to integrate into many bathroom layouts without major structural changes.
Call Toll Free 1-888-779-2284(BATH) to speak with a bathing specialist and confirm sizing before ordering.
This model stands out because of its extra wide internal seat. Specifically, the seat width slopes from 28.5 inches at the bottom to 30.25 inches at the top. Therefore, bathers gain more room at the hips and upper body where it is most needed.
In addition, the tub offers 17 inches of soaking depth measured from the bottom of the seat to the bottom of the overflow. Because of this depth, many users enjoy a more traditional soaking experience compared to smaller walk in tubs.
The inward-swinging door features a sloped opening that increases in height. Near the legs, the door measures approximately 14 inches, then rises to 16 inches, and reaches 23.5 inches at the top. As a result, entry feels more natural while still maintaining a secure seal.
Finding the right size walk in bathtub can feel overwhelming. However, Aging Safely Baths simplifies the process by offering extra wide walk in tub models designed for larger people. Most importantly, this 35” x 55” bariatric walk in tub focuses on seating comfort rather than squeezing into a compact shell.
The low threshold and wide seat allow bathers to sit comfortably without feeling cramped. Moreover, this model supports multiple accessory options, depending on your preferences.
If you would like help comparing sizes, visit our walk in tubs page or request a quick price quote.
Warranty coverage matters even more with a bariatric walk in tub. For that reason, this model includes a non-degrading lifetime warranty on the tub shell, stainless steel frame, door seal, motors, and parts. Unlike tiered warranties that reduce coverage over time, this warranty remains intact.
In addition, Aging Safely Baths manages the warranty process directly. Therefore, service and support remain straightforward if you ever need assistance.
Because large walk in baths offer more interior space, they also support more accessory options. Depending on configuration, this model can include air hydrotherapy, water hydrotherapy, or combination systems. However, we always recommend speaking with your doctor and reviewing hydrotherapy options carefully.
If you want to learn more, explore our hydrotherapy walk in tub guide for detailed explanations.
Everyone deserves a bathtub that fits their body comfortably. With its wide seat, deeper soak, and generous interior space, the HydroDimensions 35” x 55” bariatric walk in tub helps make that possible. As a result, many plus size bathers choose this model when standard tubs feel limiting.
Finally, our team believes in transparent pricing and no-pressure consultations. Call Toll Free 1-888-779-2284(BATH) for a free consultation and fast price quote.
For additional guidance on planning home modifications, this independent resource may help:
National Institute on Aging – Aging in Place
