Island Spas Frog In-Line Cap – Dark Gray
This is the replacement dark gray cap for the FROG In-Line system in Island Spas hot tubs. The cap seals the in-line housing that holds your FROG mineral and bromine cartridges. Caps are the most commonly replaced piece of the system — they get lost during water changes, and years of UV and sanitizer exposure fade them and make the plastic brittle.
How Do I Know I Need This Part?
- The cap is lost — the most common reason people land on this page
- The cap is faded, chalky, or brittle from sun and sanitizer exposure
- The cap is cracked or its threads are worn and it no longer seals the housing
Part Number Reference
Replaces Artesian Spas OEM part number 08-1502-22. Our SKU for the Island Spas listing is IS-08-1502-22.
Island Spas Frog In-Line Cap – Dark Gray FAQs
It fits the FROG In-Line housing used in Island Spas spas. If your spa has the FROG In-Line system and the housing is the standard Artesian-installed unit, this cap threads onto it. Not sure? Send us photos through the form below and we will confirm before you order.
Both caps fit the same FROG In-Line housing. The difference is color only, so match the cap you have — or pick the one that looks best in your equipment area. The Light Gray version is linked in the buttons above.
Yes. Artesian Spas uses the same FROG In-Line hardware across its brands, so the base part number 08-1502-22 is shared by Tropic Seas Spas, Artesian Elite, Island Spas, and South Seas Spas. We list it under each brand so you can shop from the page built for your spa.
No. This is the replacement hardware only. The FROG In-Line mineral and bromine cartridges that go inside the system are sold separately.
✅ Not Sure It Fits? Verify Before Ordering
Hot tub part compatibility can vary by spa brand, model, year, serial number, control system, and part revision.
To help us identify the correct replacement part, please send clear photos of:
- Your existing part label or sticker
- Your spa serial number sticker
- The equipment area or installation location (if accessible)
EZ Hot Tub Parts can help confirm fitment before you order and help reduce costly returns.
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