25 sq. ft. Cartridge Filter Rainbow, Waterway, Custom Molded Products C-4326 FC-2375
- Diameter : 4-15/16
- Length : 13-5/16
- Top End Cap: id/config : 2-1/8 / open
- Bottom End Cap: id/config : 2-1/8 / open
The cartridge is used on:
- Accent Spas
- Acryx-Maax Spas (Canada)
- Apollo Spas
- Aqua Mystic
- Beachcomber
- Blue Falls Mfg. Ltd. (Canada)
- Coast Mountain Spas (Canada)
- Coleman Spas
- Custom Molded Products, OEM P/N 25392
- Top Mount Skim
- EZ Twist Top Mount Skim
- Top Load Pressure
- Dakota Spas
- Emerald Spas
- Great Lakes Home and Resort
- Honey Tubs
- Hot Spot
- Hot Springs Spas
- Islander Spas3
- Jacuzzi Premium
- J200, OEM P/N 373045
- Moonwater Spas
- Nordic Hot Tubs
- Note: Model dated after 7/99.
- Orca Bay Spas
- PDC Spas
- Pentair® Pool Prod
- Dynamic Series I RDC-25, OEM P/N R173429 , 17-2327
- QCA
- Rec Warehouse
- 303909
- River Valley Spas
- Royal Spas
- Rubadub Tub
- Safari Spas
- Signature Spas
- Spa Manufacturers Inc.
- Streamline Spas
- Sun Ray Spas (Canada)
- Thermo Spas of Connecticut
- US Spas
- Viking Spas
- Waters Edge Spas
- Waterway Plastics
- Top load (in-line), OEM P/N 817-2500
- Zone Spas
Please be advised that certain manufacturers - including Pentair® (with their TradeGrade® products), Jandy®/Fluidra® (with their Trade Series Exclusive™ products), and Hayward® (with their Expert Line® products) - do not honor manufacturer warranties on specific product lines purchased online.
These policies are intentionally enforced by the manufacturers to prevent customers from purchasing the same products at lower prices online.
Warranty coverage for these products is generally only available when purchased in person from an authorized local dealer.
While we strive to take care of our customers by offering the lowest possible prices on brand new, genuine products, we do not provide warranty coverage ourselves, nor can we guarantee that the manufacturer will honor the warranty on products purchased from our online store.
It is the buyer’s responsibility to confirm warranty eligibility directly with the manufacturer before making a purchase.
If you are a local customer, you may be able to purchase these items in-store and obtain manufacturer warranty coverage. However, for many of our customers across the country, paying significantly more locally just to access a manufacturer warranty often doesn’t make financial sense, especially when some local suppliers charge considerably higher prices.
By completing your purchase, you acknowledge and agree that we are not responsible for warranty support or claims denied by the manufacturer due to their online sales restrictions.


Larry V. –
Well done!
Sarah H. –
Well done!
Penelope Price –
They always provide clear answers and solutions.