Skip to main content

Spa Parts Made Simple

Pumps, heaters, control boards, and replacement parts — without the confusion.

Shop Spa Parts
✔️ Real OEM & compatible spa parts
✔️ Fast shipping from the USA
✔️ Knowledgeable support when you need it
✔️ Trusted by spa owners since 2015

Not sure which part fits your spa?

We make it easy to find the right replacement part — without guessing.

  1. Find your spa model
  2. Match the part number
  3. Order with confidence
Get Help Finding a Part

SpaShopper makes it easy to find quality hot tub and spa replacement parts without the frustration. From spa pumps and heaters to control boards, jets, filters, and plumbing components, we stock parts that fit a wide range of popular spa brands. Whether you’re fixing a heating issue, replacing a worn pump, or upgrading aging components, SpaShopper helps you get your spa running again quickly and confidently.

Caldera / Watkins 100 Sq Ft Filter Cartridge

Was: $92.12
Now: $79.95
(No reviews yet) Write a Review
SKU:
C-8399
Short Description:
Product Code: C-8399
Adding to cart… The item has been added
75 Square foot filter cartridge for many Caldera/Watkins Spas. AKA/Replaces: 73722, FC-3965, C-8399, PLE-051-9370, PCD100W, 645544039651, 1039607

Dimensions:
  • Length = 16-1/2"
  • Diameter = 7-7/8"
  • Top = Handle
  • Bottom = 3-1/2" reversed taper hole