Pool Filter Lab

Curated filter system

Waterway Clearwater 150 replacement cartridge

Fits withC-9403
cross-checked against 3 sources

Which cartridge fits?

The curated mapping points to the cartridge records below. Equivalent brands share the same verified dimensions where sources agree.

Waterway Clearwater 150 cartridge equivalents
UnicelPleatcoFilburDimensionsVerification
C-9403PWW150PWW150-4FC-29699-15/16" × 25-5/16"cross-checked against 3 sources

Primary cartridge specifications

Specifications shown for Unicel C-9403. Open its full record for conflicts, notes, and all fitments.

Cartridge specifications
Outside diameter9-15/16"
Source values
  • unicel 9-15/16"
  • pleatco 10"
Length25-5/16"
Source values
  • unicel 25-5/16"
  • pleatco 25-1/4"
Top cap5-13/16" / open
Source values
  • unicel 5-13/16" / open
  • pleatco 6
Bottom cap6-1/16" / open
Source values
  • unicel 6-1/16" / open
  • pleatco 6
Filter area150 sq ft
Source values
  • unicel 150
  • pleatco 150

Full record: Unicel C-9403. Cross-references include PWW150PWW150-4FC-2969OC-J25B

When the model label is missing

Measure outside diameter and end-to-end length, then compare the top and bottom openings. Manufacturer specifications override any cross-reference.

Measure the cartridge or search by dimensions.