How do I find and decode the model number on my Ella tub?

Your Ella tub carries two identifiers. A yellow model tag on the back of the unit lists the model code and the configuration it was built with, and a separate label behind the magnetic access panel next to the door carries the serial number, which starts with the letter M. The serial is the number the team reads to pull up your exact build, so when the spec sheet does not print your configuration, the serial answers the question. Where Do I Find the Serial Number on My Walk-In Tub? shows you the panel, and this page explains what the other numbers mean and how older codes translate to today's model names.

Two Labels, Two Jobs

The model tag and the serial label answer different questions, and it helps to know which one you are looking at before you send anything in.

• The yellow model tag sits on the back of the unit. It lists the model code and the configuration, which is what you compare against your invoice or order confirmation when a tub arrives. Size and left or right orientation are the most common mismatches, and the check has to happen before installation because installed tubs cannot be returned or exchanged. The Tub That Arrived Is a Different Model or Is Missing an Option I Ordered walks through that comparison step by step.
• The serial label is on the inside of a removable panel. On most models that is the magnetic panel next to the door. On stainless steel door models it is behind the large access panel on the seat side. The label usually shows several numbers: the serial, a manufacture date, and model or item codes.
• What the serial tells Ella. As the video on this page explains, the serial number lets the team see when the tub was made, who built it, and which replacement parts are compatible. That is why the team asks for the serial rather than the model name alone when a part is needed.

Why the Spec Sheet Does Not Show Your Configuration

A spec sheet is the drawing-style document for a single model. It prints the overall dimensions, the door and seat details, the drain and water supply information and the electrical requirements for every therapy system offered on that model. It does not print which of those systems were fitted to one individual tub, because the same sheet serves a soaker and a fully jetted unit of the same model. How to Get the Spec Sheet and Manual for Your Ella Walk-In Tub Model explains how to download the sheet for your hand of door.

Your own configuration comes from three places. Your invoice or proposal lists the therapy package that was ordered. The tub deck shows it physically, because Ella does not install a control button unless the equipment behind it is installed, so a tub with a hydro massage button has the pump behind it. And the serial lets the team read the build back from the original order. Electrical requirements are also specific to the therapy package rather than the model name, so once you know your package, Can I Get an Electrical Diagram or Parts List for My Tub? shows where the matching diagram lives.

Reading the Numbers on the Label

Copy or photograph the whole label rather than one line. Several of the numbers look alike, and the team sorts them out quickly when it can see all of them together.

• The serial number starts with M. It is a separate number printed next to the date.
• A number printed as a date is the manufacture date, not the serial. People often send this one by mistake.
• A five digit number such as 93117 on your invoice is a model reference, not a serial.
• HA305 with an L or an R identifies the Deluxe with the hydro plus air package.
• G305 is another reference for the Deluxe that appears in serial lookups.
• XXXL on a schematic is a misprint. The 2021 Air, Hydro and Independent Foot Massage schematic lists an XXXL entry that refers to the TransferXXL. There is no XXXL model in the Ella lineup.
• Malibu OA3052 is the earlier name of the Capri.
• Chi and Tramo are retired models. The team can still identify them and check which parts remain compatible.

Older and Non-Standard Labels

Older paperwork and shipping crates often carry a short letter-and-number code instead of today's model name. Send any code you find, even if it does not look like a model name, because the team translates those codes to the current model. If the label is missing or unreadable, the team can still find your order, item number, serial and ship date from the purchaser's name, the email address or the shipping address used for the order, and dealer purchases can be identified from the dealer's records.

If the tub came with a house and you are not sure it is an Ella at all, measure the exterior length, width and height in inches, note whether the door swings inward or outward and which side it is on as you face the tub, and photograph the whole tub, the door and latches, the controls, the faucet, the drain area and the label. Is My Unbranded Walk-In Tub an Ella, and Which Model Is It? explains how support matches those measurements to a model. Ella has updated many parts over the years, so the current spec sheet for a model may not match a unit built several years ago in every detail, which is one more reason the serial matters more than the model name for an older tub.

What to Send the Team

1. Open the magnetic access panel next to the door, or the large access panel on the seat side on a stainless steel door model, and photograph the entire label.
2. Photograph the yellow model tag on the back of the unit if you can reach it.
3. Photograph the tub deck showing every button, dial and control.
4. Note the exterior length, width and height in inches if the model itself is in question.
5. Open a ticket at ellasbubbles.com/support with the photos and your invoice number if you have one, or call (800) 480-6850 with the serial in hand. Say what you need next, such as the spec sheet, the manual, the electrical diagram or a specific part.

If your tub has not been built yet, the model, door side, therapy package, faucet and accessories are confirmed when the order is placed. It is worth having that configuration confirmed in writing on your order so the model tag can be checked against it on delivery day.

Watch: Ella's Bubbles: Serial Number Location with chapters and a full transcript.

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