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How to Open and Close the Inward-Swing Acrylic Door on Standard, Zen, and Flow Tubs

Updated September 2026

The inward-swing acrylic door on the Standard, Standard60, Zen, Zen60, and Flow walk-in tubs works the same way on every model: you open the door toward the seat, step in over the low threshold, close the door while standing, and fill the tub. As the water rises, water pressure presses the door into its seal, so the door actually seals tighter the fuller the tub gets. The one habit to remember: never open the door until the tub is completely drained.

Meet Your Door

This door family belongs to our single-drain acrylic platform. The door is molded acrylic, swings into the tub, and latches with a chrome handle on the inside of the tub. Because the door swings inward, it needs no clearance space in front of the tub, which makes these models a great fit for smaller bathrooms.

ModelTub size (W x L x H)Door
Standard29 5/8" x 52 3/4" x 37.5"Inward acrylic, S-shape
Standard6029.53" x 59.84" x 38"Inward acrylic, S-shape
Zen29 1/2" x 52" x 37.5"Inward acrylic, S-shape
Zen6029 1/2" x 59 1/2" x 37.5"Inward acrylic, S-shape
Flow28" x 48" x 36.5"Inward acrylic, S-shape

A note for Zen and Zen60 owners: the Zen product pages describe the sleek inward-swing S-shape acrylic door, the same door platform as the Standard, and the Zen manual matches the Standard manual. Where an older spec sheet says "U-shape" for the Zen, that wording is a misprint; on Ella tubs "U-shape" names the outward-swing composite door. Model profiles: Standard and Standard60, Zen and Zen60, and Flow.

Front view of an Ella Zen walk-in tub with the inward swing acrylic door open, chrome grab bar and hand shower
The Zen with its inward-swing acrylic door open. Nothing in the bathroom has to move to make room for it.

Getting in and Out, Step by Step

  1. Open the door fully into the tub.
  2. Hold the grab bar and step over the low threshold onto the textured floor.
  3. Remain standing and pull the door closed until the handle latches. Closing the door while seated is much more difficult, so latch it before you sit down.
  4. Sit, then fill the tub with the faucet. Water pressure will hold the door firmly against its seal for the whole bath.
  5. When you are done, open the drain and let the tub empty completely. This family drains through one oversized 2" gravity drain with a chain-operated plug, and there is an emergency pull-up chain within easy reach.
  6. Only after the water is fully gone, unlatch and open the door, then step out holding the grab bar.
Top view diagram of the Ella Flow walk-in tub inward swing door showing its 96 degree opening arc into the tub
The Flow's door drawing: the door arc opens into the tub, which is why no floor space is needed in front of it.

Why the Door Will Not Open Right After a Bath

This is by design and is not a fault. An inward-swing door is held shut by the weight of the water, which is part of what makes it watertight. Once the tub is completely drained, the door opens normally. If your door feels stuck, please check that the drain plug is fully open and give the tub a moment to finish emptying. Our article on why the door will not open until the tub drains covers both door types and the question of accidental opening.

A Quick Look at All Three Ella Door Styles

Walk-in Tubs With Stylish, High Quality Doors for Easy Access
Chapters in this video
  1. 0:00 Ella's Bubbles Door Styles Ella's Bubbles walk-in tubs feature three distinct door styles for various needs.
  2. 0:18 Outward Swing U-Shape Door The outward swing U-shape door is made of industrial strength PVC with a glass panel and chrome handle.
  3. 0:30 Inward Swing U-Shape Door The inward swing U-shape door is made of brushed stainless steel with a frosted glass panel.

As the video explains, Ella walk-in tubs come in three unique door styles: the inward-swing door, the outward-swing U-shape door, and the L-shape outward-swing door. Outward U-shape doors are industrial-strength PVC with a decorative glass panel and need 21 inches of clearance, and the L-shape door needs 36.5 inches of clearance for wheelchair access. Your inward-swing acrylic door is the compact option of the three: it swings into the tub, so nothing in the bathroom has to move to make room for it. Watch: Walk-in Tubs With Stylish, High Quality Doors for Easy Access with chapters and a full transcript.

Installation Tips That Affect the Door

Ella's Bubbles: Installation Tips For The Ella Standard Walk-In Tub
Chapters in this video
  1. 0:00 Ella Standard Walk-In Tub Overview The video introduces the Ella Standard walk-in tub, highlighting its size and design for average bathers.
  2. 0:27 Fitting Tub Into Alcove Tips are provided for fitting the tub into a 60-inch alcove, including trimming the apron or using the standard end piece.
  3. 0:49 Hydro Massage System Features The tub's 18-jet hydro massage system is described, including its intensity control dial and inline water heater.
  4. 1:14 Drainage And Adjustable Frame The oversized two-inch drain and adjustable frame with access points for door adjustments are showcased.

Watch: Ella's Bubbles: Installation Tips For The Ella Standard Walk-In Tub with chapters and a full transcript.

This installation video for the Standard shows the parts of the platform that matter for the door: the adjustable frame with access points for door adjustment on site, the removable access panels for service, and the oversized 2 inch drain with its emergency pull chain. It also covers fitting the tub into a 60 inch alcove with the faucet-side end panel and extension panel, and the single dedicated GFCI connection for the hydro pump and heater. If your door ever rubs or will not seal, the leveling legs behind the apron are the first thing to check, as described in fixing a door that rubs the frame.

Care for the Door and Seal

  • The silicone door seal can stick or look slightly deformed when the tub first arrives, from shipping and storage. Gently squeeze the seal with your fingertips and pull it away from the door frame so it relaxes back into shape, and clean it with rubbing alcohol.
  • Keep the door open when the tub is not in use. This prevents unnecessary compression of the gasket and extends its flexibility and life. Full seal care is in caring for your door seal.
  • The door is designed to hold its own weight only. Please never lean on it or use it for support; that is what the deck and wall grab bars are for.
  • On this platform the front leveling legs are screwed into the subfloor, and every leg must carry equal weight for the door to close squarely.

Common Questions

Why will the door not open after my bath?
The water pressure from a filled tub holds the inward-swing acrylic door shut, which is by design and not a fault. To open the door, you must first open the oversized 2-inch gravity drain fully and wait until the tub is completely empty. Once the water is fully gone, you can unlatch and open the door normally.
Does the Zen have an S-shape or a U-shape door?
The Zen and Zen60 walk-in tubs feature an inward-swing S-shape acrylic door, which is the same door platform as the Standard and Standard60 models. An older Zen spec sheet that mentions a "U-shape" door is a misprint. On Ella tubs, the term "U-shape" specifically refers to an outward-swing composite door.
Do I need floor space in front of the tub for the door?
No, you do not need floor space in front of the tub for the inward-swing acrylic door on Standard, Zen, and Flow models. This door swings into the tub, opening toward the seat, which means nothing in the bathroom has to move to make room for it. Only the outward-swing U-shape and L-shape doors require clearance space in front of the tub for their swing envelope.
Can the door be on the left or the right?
Yes, the inward-swing acrylic door can be on the left or the right side of the tub. Every Ella walk-in tub model, except for the Front Entry, can be ordered with either a left-hand or right-hand door. This is described as you face the tub ready to step in, with the drains located at the opposite end from the door.
How do I close the door if I am already seated?
Closing the inward-swing acrylic door while already seated is much more difficult. For easier operation, you should remain standing and pull the door closed until the chrome handle latches. After the door is securely latched, you can then sit down before filling the tub with the faucet.
What is the emergency pull-up chain for?
The emergency pull-up chain is designed to lift the drain plug directly from inside the tub. This allows you to drain the tub and open the door even if the main drain control cannot be operated. The single oversized 2-inch gravity drain is gravity-driven and does not require power to function.
Is the acrylic door removable like the stainless steel door?
The removable-door feature is specifically published for the stainless steel inward-swing door family. For the acrylic S-shape door found on Standard, Zen, and Flow models, please contact the Ella's Bubbles support team before attempting to remove it. You should provide your model and serial number to the team for specific guidance.
Which manual covers my door?
The Standard and Zen walk-in tubs share the same manual for their inward-swing acrylic door platform. The Flow walk-in tub has its own dedicated manual. You can find the manual and spec sheet for your specific model under the "Downloads" tab on each product page on the Ella's Bubbles website.

For anything specific to your model or serial number, open a ticket at ellasbubbles.com/support or call (800) 480-6850, and please attach photos so the team can help you quickly.

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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