Unicel C-6430 Replacement Filter Cartridge | 30 sq. ft. | Hot Springs Spas Door & Gate Alarms

Unicel C-6430 Replacement Filter Cartridge | 30 sq. ft. | Hot Springs Spas Door & Gate AlarmsThe Unicel 6000 Series C 6430 is a precision engineered 30 sq. ft. replacement filter cartridge built for Hot Springs Spas (Watkins Wellness). Constructed from 4 oz. Reemay 2040 polyester media with 124 pleats, this cartridge delivers reliable filtration performance and extended service life engineered to exact OEM dimensional tolerances for a drop in fit. IMPORTANT: MODEL YEAR RESTRICTION This cartridge is compatible with Hot Springs Spas models

Add twice per week during periods of heavy use

Acid Demand

Excellent for light skimming of even fine debris on the surface of the water

Produces super clear water fast through a highly effective “4 x 1” action

OEM Brand Filter Model OEM Part Number Notes Pentair Clean & Clear Plus R173578 4 cartridges required

Provides an active bromine residual

as long as you maintain proper filtration

OEM Brand Filter Model OEM Part Number Grid Configuration Hayward Micro-Clear DEX6000DA 7 full + 1 partial (PG-1905) Hayward Pro-Grid DEX6000DA 7 full + 1 partial (PG-1905) Pentair – American Products 5000 Series 59003000 7 full + 1 partial (PG-1905) Pentair – American Products Titan CM 59003000 7 full + 1 partial (PG-1905) Pentair – American Products Titan RPM 59003000 7 full + 1 partial (PG-1905) Pentair – American Products Titan Stainless Steel 59003000 7 full + 1 partial (PG-1905) Pentair – Pac Fab FNS Plus 59003000 7 full + 1 partial (PG-1905) Pentair – Pac Fab FNS 60 (Nautilus FNS Polymeric) 19-2189 7 full + 1 partial (PG-1905) Pentair – Pac Fab NS60 (Nautilus) 19-2189 7 full + 1 partial (PG-1905) Pentair – Pac Fab NSP-60 (Nautilus Plus) 19-2189 7 full + 1 partial (PG-1905) Sta-Rite — WC108-5A 8 full grids — no partial required Jandy (Waterpik) DEL/DEV 60 R0357800 8 full grids — no partial required Jacuzzi Earthworks EW 60 42-2970-07-R 8 full grids — no partial required Waterway Plastics Crystal Water 818-3930 — Astral 18047 Clarity DE — — (This is not an exhaustive list

OEM Brand Product Name Part Number Notes Hayward Star-Clear II C1100 CX1100RE — Cal Spas — — Verify model compatibility before ordering (This is not an exhaustive list

it delivers dependable dirt-holding capacity and flow-through performance in high-demand single-cartridge housings

40°C Ambient Temperature

Verify your filter model's grid configuration before ordering — partial grids are NOT interchangeable with full grids