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Why Are the Caps on My Jets Falling Off and Can I Replace Them?

Updated September 2026

▶Glossary5
  1. Likely Causes
  2. What to Check, in Order
  3. When to Open a Ticket
  4. Related Guides
  5. Common Questions

When the caps for the jets are falling off, the jet face has usually unscrewed from its threaded body, or the jet nut behind the jet that holds the assembly tight has loosened. Both are quick to check from inside the tub, and caps, faces and complete jet assemblies are available as parts. The first thing to do is look at the cap that came off: a hydro jet face has a center nozzle and threads back into its housing, while an air jet cover, such as the Air Jet V.2 fitted to many tubs, is a small chrome cap on its own threaded body. Send a photo of it and the team confirms availability and ships the matching version.

Likely Causes

  • The jet nut behind a hydro jet has loosened, so the face rotates freely and eventually drops out.
  • Someone turned a stiff foot jet nozzle hard enough to unscrew the whole face instead of opening the valve.
  • An air jet cover was knocked off during cleaning, or broken off during a move; the jets on the underside of the tub break off easily if the tub is set down on them.
  • Jet covers differ by production year, so a cover from another tub may not seat properly.

What to Check, in Order

  1. Drain the tub and identify the jet: hydro jet face with a center nozzle, or air jet cover on the seat, back or floor.
  2. For a hydro jet, line the half-cut opening of the face up with the hole inside the housing where the water comes out, thread it back in, then tighten the jet nut behind the jet until the face is secure and the nozzle no longer turns on its own. The steps are in adjusting jets and foot jet nozzles.
  3. If the center nozzle is too stiff to turn, loosen the butterfly handles behind the jet slightly with pliers or channel locks, then adjust the nozzle and retighten the nut.
  4. For an air jet, check whether the threaded body is still in the tub wall. If only the cap is gone, a cover is all you need; if the body is cracked, the assembly is replaced.
  5. Photograph the jet next to a ruler, since sizes vary by year, and note your model and serial number from the label inside the removable panel by the door. Air jet covers and jet replacement parts explains what ships and what cannot be added later.

When to Open a Ticket

Contact your Ella dealer or the team at (800) 480-6850, or open a ticket at ellasbubbles.com/support, with the model, the serial number, a photo of the jet with a ruler in frame and a wider shot showing where it sits. Say how many you need and whether it is the cap, the face, or the whole assembly. How to order replacement parts covers the rest of the request.

How to Adjust to Hydro Jets in Your Walk-In Tub? | Ella's Bubbles
Chapters in this video
  1. 0:00 Adjusting Hydro Jet Pressure The technician demonstrates how to adjust the pressure of a hydro jet by turning its center nozzle.
  2. 0:21 Loosening Butterfly Handles If the center nozzle is difficult to turn, the technician shows how to loosen the butterfly handles using pliers.
  3. 0:48 Ensuring Valve Is Open To ensure the valve is fully open, the technician removes the jet and aligns its half-cut opening with the internal hole.
  4. 1:20 Securing the Jet The technician tightens the nut for the jet to secure it in place, preventing the nozzle from turning.

The video shows the center nozzle being turned as a valve, the butterfly handles behind the jet being loosened with pliers, and the jet nut being tightened so the nozzle stays put, which is the same nut that has loosened when a jet cap keeps falling off. Watch: How to Adjust to Hydro Jets in Your Walk-In Tub? with chapters and a full transcript.

Common Questions

Can I get replacement covers for just two jets?
Yes, you can get replacement caps and covers for individual jets. Jet caps and covers are supplied individually, so you can ask for the specific number you need. To ensure you receive the correct part, send a photo of one cover along with your tub's serial number, as jet covers can differ by production year and may not seat properly if they are from another tub.
What is the Air Jet V.2 and how do I know if I need it?
The Air Jet V.2 is a specific air jet cover that is fitted to many Ella's Bubbles walk-in tubs. You do not need to identify it yourself; simply send a photo of your existing air jet cover to the support team. They will confirm whether the Air Jet V.2 or an earlier version is the correct fit for your tub based on the photo.
I need the jet actuator or the jet valve fitting. Are those available?
Yes, the center nozzle of a hydro jet, which functions as the valve, is available as a replacement part. The jet face, the threaded body, the washer, and the elbow behind the jet are also supplied as individual parts. To get the exact piece you need, describe what is broken and send a photo to the support team.
Can I replace two individual air jets with a different type or add jets elsewhere?
Individual jets can be replaced like for like. Jets cannot be added in new positions, and a therapy cannot be added to a tub that was not built with it, because every tub is drilled and plumbed at the factory for the package ordered.

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.

Related guides

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