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The Filbur FC-3963 Pool and Spa Filter replaces the Unicel C-7350, Pleatco PCD50N and OEM part no. 1019401 It is also known as the Caldera 50, FC3963, PCD50-N and C7350. Keep your spa or pool in tip-top shape by replacing that old filter with the Filbur FC-3963. This filter is made of Reemay spunbond pleated filter media equipped with thermally-bonded polyurethane caps and punched PVC pipe cores. It ensures consistent flow and durability, featuring anti-microbial (Microban) technology, which prevents microbes like mold, mildew, bacteria, and fungi from growing. This technology is becoming the industry standard and is a part of every Filbur brand filter. Enjoy the benefits of clean, efficiently-filtered water when you install this replacement filter!
Specifications:
- Brand: Filbur
- Part Number: FC-3963
- Pack Size: 1
- Diameter: 7"
- Top: Swivel Handle
- Bottom: 2-11/16"
- Surface Area: 50 Sq. Ft.
- Length: 10-3/4"
Compatible Parts:
The Filbur FC-3963 Replacement Caldera Spa Filter is the correct replacement for the following part numbers:

Customer Reviews:
Fits my Caldera Spa just like the OEM filter that came with it.
Collected by Trustpilot.comIf it fit it would have been a great filter
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