Unicel 4CH-35 Replacement Filter Cartridge | 35 Sq. Ft. | Sundance & Hot Springs Spas Pool Liners & Liner Accessories Brand Equipment Line Model /

Brand Equipment Line Model / Part Number Notes Pentair MasterTemp 125 Heater MT125 / MasterTemp125 NA and LP Series Pentair Max-E-Therm 125 Heater MAX-E-THERM (125K BTU) NA and LP Series Pentair MasterTemp 250 Heater MT250 / MasterTemp 250 NA and LP Series Pentair Max-E-Therm 250 Heater MAX-E-THERM (250K BTU) NA and LP Series Pentair MasterTemp 400 Heater MT400 / MasterTemp 400 NA and LP Series Pentair Max-E-Therm 400 Heater MAX-E-THERM (400K BTU) NA and LP Series Compatibility is based on Pentair parts documentation and available OEM records

also fits ASME models with New Header Design (10/2012 to Present)

if spas are separate as it includes a bromine test

Sacrificial Zinc Anode Lasts Approximately 3 Years

Unicel 4CH-35 Replacement Filter Cartridge | 35 Sq. Ft. | Sundance & Hot Springs Spas Pool Liners & Liner Accessories Brand Equipment Line Model /Keep your spa running clean with the Unicel 4CH 35 from the 4000 Series a 35 square foot replacement filter cartridge engineered for spa filter housings that use a 1 1 2" male threaded bottom connection. With 145 pleats of 3 oz. Reemay 2033 polyester media, the 4CH 35 delivers reliable debris capture and extended service life in a compact 16" form factor. IMPORTANT: Verify Your Bottom Fitting Before Ordering The 4CH 35 has a 1 1 2" male pipe thread