Caldera 50 Hot Tub Spa Filter by SpiroPure

  • SP-PS-3963

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SpiroPure SP-PS-3963 is a compatible alternative pool and hot tub spa replacement for Caldera 1019401 / 73532, Filbur FC-3963, Pleatco PCD50N, and Unicel C-7350 cartridges. SP-PS-3963 is designed to fit spas and pools by Caldera Spas.

Important Specifications:
  • Diameter: 7"
  • Length: 10 3/4" (10.75")
  • Top Hole: Closed
  • Bottom Hole: 2 11/16" (2.6875")
  • Top Style: Handle
  • Bottom Style: Open
  • Media Area: 50 sqft
  • Weight: 3 oz
Compatible Filter Model/Part Numbers:
  • Aladdin 15051
  • Baleen AK-60033
  • Caldera 50
  • Caldera Spas 73532, 1019401
  • Filbur FC-3963
  • Pleatco PCD50N
  • Pure N Clean PC-3963
  • SD-00358
  • Unicel C-7350
Compatible Hot Tub Spa & Pool Brands:
  • Caldera Spas
  • Hot Spot Spas
  • Watkins Mfg.