Hot Tub Filters


Single: £44.99

2 Pack: £79.99


Replacement for
  • Filbur FC-2385
  • Unicel C-4335
  • Pleatco PRB35-IN
Diameter 5″
Length 9 1/4″
Top 2 1/8"
Bottom 2 1/8"

Simply reorder based on the manufacturer of your previous hot tub filter, locate a part number or measure the length and then the top and bottom diameters.

Please contact us if you have any questions, we are happy to help!

0800 041 8815


Hot tubs and spas are great fun and relaxation for all seasons, but they also need to be properly cleaned and maintained to keep them safe and sanitary all season. Filters keep the hot tub spa water clean and help maintain balanced water chemistry. Made of material that pleats, your filter will catch debris and the smallest of particles and remove them. All cartridge filters should be cleaned at least every 1-2 months and replaced every 4-6 months (more often with high usage).


  • Washable material extends filters life
  • Free flow core
  • High dirt holding capacity
  • Affordable choice

Fits many hot tub spa models including:

  • Aber Hot Tubs
  • Belize Spas
  • Bullfrog Spas
  • Clearwater Spas
  • Coast Mountain Spas
  • Columbia Spas
  • Crystal Waters Spas
  • Custom Molded Products
  • Great Lakes Home & Resort
  • Gulf Coast Spas
  • Hawkeye Spas
  • Hydropool Industries
  • Hydro Spa
  • Leisure Bay Manufacturing
  • Moose Mountain Spas
  • Orca Bay Spas
  • Pentair Pool Products -Rainbow Plastics
  • Phoenix Spas
  • Premium Leisure
  • Rec Warehouse
  • Royal Spas
  • Strong Industries
  • Sun Coast Spas
  • Sun Ray Spas
  • Sunrise Spas
  • Thermo Spas
  • Waterway Plastics
  • Wind River Spas