Hot Tub Things® Flat Filters 4‑Pack – Fits Simplicity® by Bullfrog Spas (2018+) – part #10‑00814

Q: What spa models is this filter compatible with?

A: This flat filter is designed specifically for Simplicity® by Bullfrog Spas® from 2018 to present.

Q: Is this a genuine Bullfrog® part?

A: No, it's a Hot Tub Things® premium aftermarket replacement compatible with OEM part #10‑00814.

Q: Can I reuse these filters?

A: These filters are intended for single-use or short-term use. For best performance, replace regularly.

Q: Does this work with Bullfrog STIL or A Series?

A: No, this filter is not compatible with STIL, A, M, or X Series models.

Q: How often should I replace my flat filters?

A: Every 1–2 months depending on spa usage and water conditions.

Turn off power to your spa before beginning filter replacement.

Open the filter compartment and remove the existing flat filter.

Insert a new Hot Tub Things® flat filter (part #10‑00814 replacement).

Ensure the filter is fully seated and close the compartment.

Power spa back on and run filtration cycle as normal.