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Ultra, Standard, Flow and S-Class on Video: Seat Heights, Soaking Depth, Thresholds and the Legacy Line

Updated September 2026

This page puts the Ultra, Standard, Flow and S-Class on video. The Ultra is the aluminum-and-glass inward-door tub, the Standard and the Flow are the acrylic inward S-shape door tubs, and the S-Class is a legacy line that appears in older Ella's Bubbles videos. Each current model has a product video, and this article pairs the on-screen figures for seat heights, soaking depth and thresholds with the current spec sheets so you have one set of numbers to plan with.

Video 1: The Ultra

The Ultra Walk-In Tub
Chapters in this video
  1. 0:00 Introducing The Ultra Walk-In Tub The Ultra walk-in tub is presented, highlighting its durable acrylic, low threshold, textured floor, and frameless door with a frosted glass panel.
  2. 0:31 ADA Compliant Seat And Soaking Depth The tub's ADA compliant seat height and length are detailed, along with how the soaking depth is determined and its specific measurement for the Ultra.
  3. 1:04 Interior Space And Jetting Options The Ultra's interior dimensions are shown, along with available air massage, hydro massage with an inline heater, calf jets, ozone sterilization, and an independent foot massage.
  4. 2:18 Faucets, Drains, And Comfort Features The fast-fill faucet set, dual drain technology, control options, LED chromotherapy, heated backrest, and optional glass screen and rain head shower column are presented.

Watch: The Ultra Walk-In Tub with Door & Seat for Elderly & Handicapped with chapters and a full transcript.

The Ultra tour introduces a frameless brushed aluminum door with a frosted glass panel, described as warm to the touch, plus a stainless steel towel bar. It gives an ADA compliant 17 inch seat height, a 19 inch seat length for leg support, a 17 1/2 inch soaking depth measured from the top of the seat to the center of the overflow, 42 inches of interior length and 24 inches of shoulder width. An extension panel is available so the tub fits a 60 inch alcove. Therapies shown are three-speed air with auto purge, hydro with in-line heater, intensity dial and calf jets, ozone, and the independent foot massage with its own dedicated pump. It shows the 5-piece fast-fill faucet, dual drain technology, a choice of digital or push-button controls, chromatherapy, the heated seat and backrest, the four-fold glass screen and the rain-head shower column as options. The current spec sheet adds the actual size, 29 1/2 by 52 1/8 by 40 inches, a 22 inch seat width, 75 gallons unoccupied, two 2 inch four-port drains, a 7 inch extension panel and one reversible end panel included, and the four packages: Air plus Hydro, Hydro plus Hydro Foot, Hydro plus Micro, and Hydro. The full profile is at Ella Ultra 30x52.

Ella Ultra walk-in tub with the frameless brushed aluminum and frosted glass inward-swing door, chrome fast-fill faucet, grab bar and dual drain
The Ultra's frameless aluminum door and 17 inch ADA seat height set it apart from the acrylic-door tubs.

Video 2: The Flow

The Ella Flow
Chapters in this video
  1. 0:00 Introducing the Ella Flow Tub This chapter introduces the Ella Flow, a new space-saving walk-in tub designed for small to average-sized bathers and smaller bathrooms.
  2. 0:44 Safety and Design Features This chapter highlights the tub's easy entry, low threshold, textured floor, secure door handle, and sleek acrylic finish.
  3. 1:04 Hydrotherapy and Faucet Systems This chapter details the tub's hydrotherapy system with intensity control, inline water heater, foot and calf jets, and the fast-fill faucet with a hand shower.
  4. 1:33 Drainage and Power This chapter explains the dual-port oversized drain with an emergency pull chain and the tub's GFCI power connection.

Watch: The Ella Flow: Best Compact Walk-In Tub for Seniors with chapters and a full transcript.

The Flow is the space saver for small to average size bathers and smaller bathrooms. The video gives 38 inches of interior length, a 20 inch seat width and a 13 inch seat length, and shows the extension panel for a 60 inch alcove and the end panel on the faucet side. It shows the low threshold, textured floor, the door handle, hydro with intensity dial and in-line heater, foot and calf jets, the 2-piece fast-fill faucet with hand shower, the drain with its emergency pull chain, a single dedicated GFCI connection and the optional removable head and neck support. The current spec sheet gives an actual size of 28 by 48 by 36 1/2 inches, 16 hydro jets, 65 gallons unoccupied, one 2 inch drain with an overflow and emergency pull-up chain, and a 15 amp GFCI outlet, where most other Ella tub sheets call for 20 amps. The video mentions a 28 inch doorway; because the tub's actual width is 28 inches and the crate is 32 inches wide, plan on a passage wider than the width you are moving through, and ask the team before ordering if a doorway is tight. See Ella Flow 28x48.

Video 3: The Standard

Ella's Standard
Chapters in this video
  1. 0:00 Introducing The Ella Standard This chapter introduces the Ella's Standard walk-in tub, highlighting its comfortable size and deep soaking capabilities.
  2. 0:33 Safety Features And Finish This chapter showcases the tub's low threshold, slip-resistant floor, grab bars, and durable acrylic finish.
  3. 0:50 Innovative Jetting And Faucets This chapter details the hydrotherapy system, fast-fill faucets, and multi-function hand shower.
  4. 1:12 Fast Drain And Emergency Chain This chapter explains the dual-port oversized drain and its emergency pull chain feature.

Watch: Ellau2019s Standard: Best Compact Walk-In Tub For A Deep Comfortable Soak with chapters and a full transcript.

The Standard tour gives 43 inches of interior length, a 22 inch wide seat with an 18 inch seat length and a 15 inch soaking depth, and shows the 7 inch extension panel for a 60 inch alcove, grab bars, the low threshold and textured floor, hydro with intensity dial and in-line heater, the 5-piece fast-fill faucet with hand shower, and the drain with its emergency pull chain. The current spec sheet gives an actual size of 29 5/8 by 52 3/4 by 37 1/2 inches, 18 hydro jets (12 upper, 6 lower), 65 gallons unoccupied and a 20 amp GFCI circuit. Both the Standard and the Flow have one 2 inch floor drain; the T-type drain body under the tub has multiple ports so your installer can connect the house drain from either side, and unused ports come capped. The video's phrase "dual port drain" refers to that connection hardware, not to two drains. The Standard and Standard60 are profiled in Ella Standard 30x52 and Standard60 30x60, and the Zen shares the same platform.

Ella Standard 30 by 52 inch white acrylic walk-in tub with hydro massage jets, grab bar and chrome 5-piece faucet set
The Standard: 18 hydro jets, the 5-piece faucet and a single 2 inch drain with an emergency pull chain.

Video 4: The S-Class and Its Two Threshold Heights

Ella's S-Class Walk-In Tubs with Easy Entry and Textured Floor
Chapters in this video
  1. 0:00 S-Class Tub Features Ella's S-Class walk-in tubs feature a low threshold, textured floor, and a sturdy stainless steel frame.
  2. 0:46 Innovative Jetting Design Ella's walk-in tubs are known for their innovative jetting design, including hydro and air massage systems.
  3. 1:26 Faucet Sets and Safety Features Customers can choose from various fast-fill faucet sets, and the tubs include grab bars and a secure door latch for safety.
  4. 1:50 Optional Accessories for Comfort Ella's offers several accessories like a heated seat, glass screen, and support pillows for enhanced comfort.

Watch: Ella's S-Class Walk-In Tubs with Easy Entry & Textured Floor for Seniors with chapters and a full transcript.

The S-Class is not part of the current lineup, but its videos are still on the channel and owners still write in. This overview explains the point that matters most: S-Class tubs were built with either a 3 inch low threshold, where the frame is lowered to the floor, or a 6 inch standard threshold, where the frame is raised to fit the drain beneath. The 6 inch models have floor jets, while the low-threshold models have their jets raised off the floor. It also stresses that the leveling legs are crucial for door alignment, and it shows the stainless frame and door latch, air with auto purge, hydro with in-line heater, the 5- or 2-piece faucet, grab bars, towel rack and easy-access service panels, with the heated seat, four-fold screen and pillows as options.

Two further S-Class 3052 and 3060 videos exist, one for each threshold version, and a third covers the S-Class 3655 for extra tall and extra large bathers. The 3052 is 52 inches long and 30 wide, the 3060 adds legroom, and both have a 21 inch seat, wall and deck grab bars, a towel rack, a chrome stainless door latch, three-speed air with auto purge, hydro with in-line heater and intensity dial, and a large 2 inch drain with a safety chain. The 3 inch version needs subfloor access for the drains, while the 6 inch version keeps the drains above the floor and leaves room for floor jetting. The 3655 has a 29 1/2 inch seat, a 6 inch threshold and dual drains. The whole line is covered in S-Class 3052, 3060 and 3655: understanding Ella's legacy series.

Common Questions

What is the Ultra soaking depth, seat height and seat length?
The Ella Ultra walk-in tub offers a 17 1/2 inch soaking depth, measured from the top of the seat to the center of the overflow. It features an ADA compliant 17 inch seat height and a 19 inch seat length for leg support. The current spec sheet for the Ultra also indicates a 22 inch seat width.
Which video presents the Flow?
The Ella Flow walk-in tub is presented in the second video on the page, titled "The Ella Flow: Best Compact Walk-In Tub for Seniors." This video introduces the Ella Flow as a space-saving walk-in tub designed for small to average-sized bathers and smaller bathrooms. It highlights the tub's easy entry, low threshold, and hydrotherapy system.
Which video shows the Standard?
The Ella Standard walk-in tub is shown in the third video on the page, titled "Ellau2019s Standard: Best Compact Walk-In Tub For A Deep Comfortable Soak." This video introduces the Ella's Standard walk-in tub, emphasizing its comfortable size and deep soaking capabilities. It also showcases safety features like a low threshold, slip-resistant floor, and grab bars.
What is different about the S-Class?
The S-Class is a legacy line of Ella's Bubbles walk-in tubs, which means it is not part of the current product lineup. A key difference is that S-Class tubs were built with either a 3 inch low threshold, requiring subfloor access for drains, or a 6 inch standard threshold, which allows drains and floor jets to be above the floor. When inquiring about replacement parts for an S-Class tub, please include your serial number for accurate assistance.
Do these tubs need a pump drain?
No, these Ella's Bubbles walk-in tubs do not require a pump drain; all models use gravity drains. The Ultra walk-in tub features dual 2 inch drains for faster water removal. The Standard and Flow models each have a single 2 inch drain with a multi-port body, allowing the installer to connect the house drain from either side, with unused ports capped.
How do the thresholds compare across these models?
All current Ella's Bubbles walk-in tub models feature a low step-in threshold for easy access. An installer can potentially lower the threshold further by setting the drain below the subfloor. For specific step-in threshold heights by model, you can refer to the "Step-In Threshold Heights by Model" page.
Why does the Flow need only 15 amps?
The Ella Flow walk-in tub requires only 15 amps because it is a hydro-only model with a single pump and heater, connected via a single plug. Its spec sheet specifically calls for a 15 amp dedicated GFCI outlet. In contrast, most other Ella's Bubbles tub models require 20 amp circuits; for more details, refer to the "Common Electrical Questions" page.
Is the Ultra door the same as the Standard door?
No, the Ultra door is not the same as the Standard door. The Ella Ultra walk-in tub features a distinctive frameless brushed aluminum door with a frosted glass panel. In contrast, the Standard, Zen, and Flow walk-in tubs all utilize an acrylic S-shape door. All these doors swing inward and create a seal with water pressure.

For anything model-specific, including the exact spec sheet for the tub on your order, open a ticket at ellasbubbles.com/support or call (800) 480-6850 and the team will be glad to help.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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