Crystal Water Spas Filters

Filter Type 4 (C-4950 / PRB50IN / SC706 / 40506 / RD50)

Starting at £19.95

Diameter: 12.5cm (4 15/16")

Length: 33.8cm (13 5/16")

Bottom Finish: Open Hole

Hole Diameter: 5.4cm (2 1/8")

Replacement for hot tub filters with reference: C-4950, PRB50IN, SC706, Darlly 40506 or Magnum RD50. Fits many hot tubs with an open hole fitting. This is the same size and fitting as our Type 5 hot tub filter, but with 50 sq ft of filtration material rather than 25 sq ft.
Learn More
Filter Type 6 (C-4335 / PRB35IN / SC705 / 40353 / RD35)

Starting at £21.80

Diameter: 12.54cm (4 15/16")

Length: 23.5cm (9 1/4")

Bottom Finish: Open Hole

Hole Diameter: 5.4cm (2 1/8" hole)

Replacement for C-4335, PRB35IN, SC705, Darlly 40353 or Magnum RD35 to fit many hot tubs with an open hole fitting.
Learn More

Choose A Hot Tub Filter by Size & End Fitting