How do I know if I need the 2026 or 2025 version seat?

Check the serial number on your TUSHY Wave or Oasis bidet. The first four digits are a date code in MMYY format. If the code is 0825 or higher, you need the 2026 version. If the code is 0724 or earlier, you need the 2025 version.

Does this seat include the lid?

No, the lid is sold separately. You only need to replace the lid if it is also damaged or if you are switching from round to elongated bowl shape.

Can I install this seat without tools?

Yes. The seat attaches to the bidet base using a sliding lock mechanism that you can engage and disengage by hand. No screws or wrenches are required.

Will this fit my elongated toilet?

No, this is the round version. If you have an elongated bowl, you need the elongated seat, which has different dimensions.

Can I use this seat on a different brand of bidet?

No. The seat is designed exclusively for TUSHY Wave and Oasis bidets and uses a proprietary attachment system that will not fit other brands or models.

Round Seat for Wave/Oasis (2026 Version)

The 3-second version

Direct factory replacement for Wave and Oasis bidet seats
Fits round toilet bowls, 18.5 inches by 14.7 inches
Tool-free sliding lock attaches and detaches in seconds
Only fits 2026-version units (date code 0825+)
Round bowl shape only
Seat alone—lid sold separately

Why it's on GiftsFeed

Replacement Round Seat for TUSHY Wave and Oasis Electric Bidets

Most replacement toilet seats force you to guess at thread pitch, hinge spacing, and whether the bolt holes line up. This one eliminates the guesswork because it is the exact part TUSHY installs at the factory. The sliding lock mechanism means no fumbling with nuts under the tank, and the precise fit to the bidet base prevents the wobble and gaps that come with generic seats.

The version compatibility matters because TUSHY changed the seat attachment design in August 2025. If your serial number starts with 0825 or later, this is the only seat that will lock into place. For anyone who has already dealt with a cracked seat held together with tape, a factory replacement that clicks in and stays put is worth the extra step of checking a four-digit code.

Good gift when

Owners of 2026-version Wave or Oasis bidets with damaged seats
Anyone who ordered the wrong bowl shape and needs to swap
People maintaining a TUSHY bidet seat long-term

Skip it if Your bidet serial number shows a date code earlier than 0825, which requires the 2025-version seat instead

Specs

Bowl Shape: Round
Dimensions: 18.5" L × 14.7" W
Compatibility: TUSHY Wave and Oasis bidets with serial date code 0825 or later
Attachment: Sliding lock mechanism, tool-free
Material: Easy-clean plastic

What's included

1 round seat for TUSHY Wave or Oasis bidet

If you're giving it

No sizing to guess

Practical replacement part best suited for existing TUSHY bidet owners.

The details

This is the round-shaped seat that ships with TUSHY Wave and Oasis electric bidet models manufactured from August 2025 onward. If your original seat has cracked, stained, or worn out, this direct replacement restores the unit without needing to swap the entire bidet assembly.

The seat measures 18.5 inches long by 14.7 wide, sized to match round toilet bowls. It locks into the bidet base using a sliding mechanism that you can detach and reattach without tools. The surface is smooth plastic designed to wipe clean quickly.

Before ordering, check the serial number printed on your bidet unit. The first four digits show the month and year of manufacture. Units with date codes 0825 or later require this 2026-version seat. Earlier units use a different design that is not interchangeable.

If you ordered the wrong bowl shape by mistake, you can purchase both the correct seat and matching lid to convert your bidet for use on a different toilet. The seat and lid together adapt the unit to either round or elongated bowls, giving you flexibility if you move or replace your toilet later.

Installation reverses the removal process: align the seat with the bidet base, slide it forward until it clicks, and engage the lock. The fit is precise to the Wave and Oasis chassis, so aftermarket seats will not work.

Tushy

Round Seat for Wave/Oasis (2026 Version)

Factory seat that fits 2026-version bidet units with serial date codes 0825 and later

$16at hellotushy.com

Quantity

Buy from Tushy

Ships and sold by Tushy. About this merchant

The 3-second version

Direct factory replacement for Wave and Oasis bidet seats
Fits round toilet bowls, 18.5 inches by 14.7 inches
Tool-free sliding lock attaches and detaches in seconds
Only fits 2026-version units (date code 0825+)
Round bowl shape only
Seat alone—lid sold separately

Cheaper alternatives

Questions

How do I know if I need the 2026 or 2025 version seat?: Check the serial number on your TUSHY Wave or Oasis bidet. The first four digits are a date code in MMYY format. If the code is 0825 or higher, you need the 2026 version. If the code is 0724 or earlier, you need the 2025 version.
Does this seat include the lid?: No, the lid is sold separately. You only need to replace the lid if it is also damaged or if you are switching from round to elongated bowl shape.
Can I install this seat without tools?: Yes. The seat attaches to the bidet base using a sliding lock mechanism that you can engage and disengage by hand. No screws or wrenches are required.
Will this fit my elongated toilet?: No, this is the round version. If you have an elongated bowl, you need the elongated seat, which has different dimensions.
Can I use this seat on a different brand of bidet?: No. The seat is designed exclusively for TUSHY Wave and Oasis bidets and uses a proprietary attachment system that will not fit other brands or models.