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Filbur FC-3963 Replacement Caldera Spa Filter


Retail: $49.99 /ea
You Save: 10%
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Retail: $49.99
You Save: 10%
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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!


  • Brand: Filbur
  • Part Number: FC-3963
  • Pack Size: 1
  • Diameter: 7"
  • Top Diameter: Swivel Handle
  • Bottom Diameter: 2-11/16"
  • Surface Area: 50 Sq. Ft.
  • Product Length: 10-3/4"

Compatible Parts:

The Filbur FC-3963 Replacement Caldera Spa Filter is the correct replacement for the following part numbers:

Part Number
Aladdin 15051
Caldera 50 (new style)
Caldera Spas 1019401
Hot tubs
Pleatco PCD50N
pools and spas made by Caldera Spas.
Unicel C-7350
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Customer Reviews:

Total Reviews: 2 | Average Rating: 3 / 5.0

R KING2021-11-18

Fits my Caldera Spa just like the OEM filter that came with it.

Collected by
Mark Burns2021-07-01

If it fit it would have been a great filter

Collected by

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