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What Is the Serial Number Label on an Ella Walk-In Tub?

Updated September 2026

▶Glossary5
  1. How It Works
  2. Which Ella Models Have It
  3. What to Know as an Owner
  4. Related Guides
  5. Common Questions

The serial number label is the identification label inside the removable access panel next to the door of your Ella walk-in tub. It carries the serial number, which typically starts with the letter M, along with model information and the UL listing details a building inspector asks to see. Owners also call it the tub label, the ID plate or the UL label, and a quick phone photo of it answers most questions before they are asked.

How It Works

On most models the label sits behind the magnetic access panel next to the door, on the inside of that removable panel. Pull the panel gently away from the frame from one corner; no tools are needed on a magnetic panel. On some tubs the team will point you to the large panel on the seat side of the front apron, where the labels are mounted inside. Set the panel back so the magnets catch when you are done. The full walkthrough is in where to find your model and serial numbers.

The serial number tells the team when the tub was made and which replacement parts are compatible with it. Many components vary from one production run to the next, so the serial is how the right part ships the first time. The same label carries the UL listing information, so a photo of it is normally all a building inspector needs; safety certifications on Ella tubs explains the marks.

Which Ella Models Have It

Every Ella walk-in tub carries a serial number label, and clearance units are identified by serial number too. Model names and SKU suffixes are decoded separately in reading your invoice and label. If you are not sure the tub is an Ella at all, is my tub an Ella? shows how to tell from the label, door and faucet.

What to Know as an Owner

Photograph the whole label on the day the tub is installed and keep the image with your sales receipt and warranty activation form. The serial number and model number are different things: the serial identifies your individual tub, while the model identifies the product, and the team may ask for either. Warranty parts, activation and support requests all go faster with the serial number ready.

Check the panel occasionally to make sure it is seated and the label is still legible, and do not pack insulation around the equipment in that space. For a ticket at ellasbubbles.com/support or a call to (800) 480-6850, have ready: the label photo, your model name from the invoice, and photos of the part in question.

Common Questions

Where is the serial number on an Ella walk-in tub?
It is on a label behind the magnetic access panel next to the door, on the inside of that removable panel, and it typically begins with M. Some tubs keep the labels inside the large panel on the seat side of the front apron.
What does a building inspector need from the label?
A building inspector needs the UL listing details, which are printed on the serial number label of your Ella walk-in tub. A clear phone photo of the entire label is usually all a building inspector needs to see for safety certifications. This label is also known as the tub label, ID plate, or UL label.
Is the model number the same as the serial number?
No, the model number is not the same as the serial number. The serial number identifies your individual Ella walk-in tub and indicates when it was made, typically starting with the letter M. The model number, SKU, or UPC identifies the product itself and can be found on your proposal or invoice. It is helpful to have both the serial number and model name ready for any support requests.
Why does the team ask for my serial number before sending a part?
The Ella's Bubbles support team asks for your serial number before sending a replacement part because it tells them when your specific tub was made. This information is crucial for determining which replacement parts are compatible, as many components can vary from one production run to the next. Providing the serial number with your initial request helps ensure the correct part ships the first time.

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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