Hot Tub Filters


Single: £44.99

2 Pack: £79.99


Replacement for
  • Filbur FC-0121
  • Unicel 4CH-21
  • Pleatco PTL18P-4
Diameter 4 5/8″
Length 8″
Top Handle
Bottom 1 1/2"

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

Fits many hot tub spa models including: Alcove, Saratoga Spas, Pageant Spas, Vita Spas and DM Industries