Independent Supplier & Replacement Part Notice
We are an independent parts supplier and are not affiliated with, sponsored by, or endorsed by Watkins, Hot Spring, Caldera, Tiger River, or Solana. These names and their part numbers are used only to identify compatibility.
We offer replacement parts as alternatives to spa-branded parts. When this listing identifies a part as the same original-manufacturer replacement, it is supplied under the component manufacturer’s branding and part number, which may differ from the Watkins or spa-brand label and number. Other compatible alternatives are identified in the individual product listing. Please review the listed specifications, fitment details, and any installation differences before ordering.
This filter fits Some Caldera and other Watkins Hot Tubs.. The Cartridge is 75 sqft, It features a 2-11/16" hole in the bottom and is 7" wide by 14-3/4" tall..
Diameter 7"
Length 14-3/4"
Top Style Handle
Bottom Style Open
Bottom Physical Dimension 2-11/16"
Media Type 3oz
Application Caldera Spa (Watkins), Watkins Mfg/Caldera Spa
Square Footage 75 sq ft
Filbur Number FC-3964
Unicel Number C-7375
Pleatco Number PCD75-N
Aladdin Number 17543
OEM Number 1019301
RJ Filtration Number AK-60032
