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4000 series

4000 Series Filters

Part Number
Name Description

4CH-19

4CH-19
4CH-19, 13 SQ.FT., 4-5/8", W/ 1-1/2"MPT 4-5/8 Outside Diameter, 4-5/8 Tall, 13 sq. ft. top load, Top End Cap:molded cone handle, Bottom End Cap: 1-1/2” male thread/MPT

4CH-20

4CH-20
4CH-20, 20 SQ.FT.,6-3/4", W/ 1-1/2"MPT 4-5/8" Outside Diameter, 6-3/4" Tall,  20 sq. ft. top load, Top End Cap:molded cone handle , Bottom End Cap: 1-1/2” male thread/MPT

4CH-21

4CH-21
4CH-21, 19 SQ.FT.,8", W/ 1-1/2" MPT 4-5/8" Outside Diameter, 8" Tall,  19 sq. ft. top load, Top End Cap:molded cone handle , Bottom End Cap: 1-1/2” male thread/MPT

4CH-22

4CH-22
4CH-22, 25 SQ.FT. FREEFLOW SPAS 4-15/16" Outside Diameter, 6-5/8" Tall, 25 sq.ft. Freeflow Spas TLX, RLX, Top End Cap:2-1/8" / open, Bottom End Cap: 1-1/2” male thread/MPT

4CH-23

4CH-23
4CH-23, 25 SQ.FT. FREEFLOW SPAS 4-15/16" Outside Diameter, 6-5/8" Tall, 25 sq.ft. Freeflow Spas CLX, Top End Cap:closed, Bottom End Cap: 1-1/2” male thread/MPT

4CH-24

4CH-24
4CH-24, 25 SQ.FT.,9-3/4", W/ 1-1/2" MPT 4-5/8" Outside Diameter, 9-3/4" Tall, 25 sq. ft. top load, Top End Cap:molded cone handle, Bottom End Cap: 1-1/2” male thread/MPT

4CH-30

4CH-30
4CH-30, 30 SQ.FT.,11-7/8", W/ 1-1/2" MPT 4-5/8" Outside Diameter, 11-7/8" Tall, 30 sq. ft. top load, Top End Cap:molded cone handle, Bottom End Cap: 1-1/2” male thread/MPT

4CH-35

4CH-35
4CH-35, 35 SQ.FT.,16", W/ 1-1/2" MPT 4-5/8" Outside Diameter, 16" Tall, 35 sq. ft. top load, Top End Cap: molded cone handle, Bottom End Cap: 1-1/2” male thread/MPT

4CH-50

4CH-50
4CH-50, 50 SQ.FT.,14-34",W/ 1-1/2" MPT 4-5/8" Outside Diameter, 14-3/4" Tall, 50 sq. ft. top load, Top End Cap: molded cone handle, Bottom End Cap: 1-1/2” male thread/MPT
4CH-65
4CH-65, 65 SQ.FT.,19-5/8",W/1-1/2"MPT 4-5/8" Outside Diameter,  19-5/8" Tall,  65 sq. ft. top load, Top End Cap:molded cone handle , Bottom End Cap: 1-1/2” male thread/MPT

4CH-920

4CH-920
4CH-920, 20 SQ.FT., 6-3/4", W/1-1/4" SAE 4-5/8" Outside Diameter,  6-3/4" Tall,  20 sq.ft. Saratoga Spas, Top End Cap: molded cone handle , Bottom End Cap: 1-1/4" SAE thread
4CH-925
4CH-925, 20 SQ. FT., 7-1/4", W/1-1/2" SAE 4-5/8" Outside Diameter, 7-1/4" Tall,  20 sq. ft. top load, Top End Cap: semi-circular handle, Bottom End Cap: 1-1/2" SAE thread
4CH-926
4CH-926, 25 SQ. FT. WATERWAY 4-15/16" Outside Diameter, 13-1/2" Tall, 25 sq. ft., Top End Cap: v-groove semi-circular handle, Bottom End Cap: 2" female SAE thread  
4CH-935
4CH-935, 35 SQ. FT. WATERWAY 4-15/16" Outside Diameter, 9-1/4" Tall, 35 sq. ft., Top End Cap: v-groove semi-circular handle , Bottom End Cap: 2" female SAE thread

4CH-940

4CH-940
4CH-940, 40 SQ.FT., 15", W/SAE 4-5/8" Outside Diameter, 15" Tall,  40 sq. ft. top load - Dimension One Spas, Top End Cap: semi-circular handle, Bottom End Cap: 1-1/4" SAE thread
4CH-949
4CH-949, 50 SQ. FT., 13-1/2", W/2" SAE 4-15/16" Outside Diameter, 13-1/2" Tall,  50 sq.ft. Rising Dragon, Waterway, Dynasty Spas, Top End Cap: v-groove semi-circular handle, Bottom End Cap: 2" female SAE thread

4CH-950

4CH-950
4CH-950, 25 SQ.FT., 12", W/SAE 4-5/8" Outside Diameter, 12" Tall,  25 sq. ft. top load - Dimension One Spas, Top End Cap: semi-circular handle, Bottom End Cap: 1-1/4" SAE thread
C-4301
C-4301, 27.5 SQ.FT. MARTEC   4-15/16" Outside Diameter, 14-7/8" Tall,  28 sq. ft. Martec, Sonfarrel, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4302
C-4302, 12 SQ.FT. SKIM FILTER W/ 1.9" BOTTOM ID 4-5/8" Outside Diameter, 4-5/8" Tall,  12 sq.ft. Pleatco skim filter, Softsider Spas, Comfort Line Spas, Top End Cap: molded cone handle, Bottom End Cap: 1-9/10" / open

C-4303

C-4303
C-4303, 15 SQ.FT. SKIM FILTER W/ 1.9" BOTTOM ID 4-5/8" Outside Diameter, 6-3/4" Tall,  15 sq.ft. Pleatco skim filter, Softsider Spas, Vita Spas, Top End Cap: molded cone handle, Bottom End Cap: 1-9/10" / open

C-4304

C-4304
C-4304, SLM  REPLACEMENT 4-1/4" Outside Diameter, 8" Tall,  SLM, Buddy-L, Waterworks, Empire, Pelican Recreational, Haughs D-8 skim filter, H20 Recreation, Top End Cap: closed, Bottom End Cap: 1-15/16" / open (Can also be replaced with C-4607 w/ top “plug” (not furnished).)

C-4305

C-4305
C-4305, 50 SQ.FT. MARTEC/CAL SPA   4-15/16" Outside Diameter, 14-7/8" Tall,  50 sq. ft. Cal Spas, Martec, Sonfarrel, Advantage Mfg., Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4306

C-4306
C-4306, 5 SQ.FT. GENERAL FOAM   4-1/4" Outside Diameter, 8" Tall,  5 sq. ft. General Foam Plastics, Top End Cap: 1-3/4" / open, Bottom End Cap: 1-3/4" / open
C-4307
C-4307, 7 SQ.FT. GENERAL FOAM   4-3/4" Outside Diameter, 8" Tall,  7 sq. ft. General Foam Plastics, Top End Cap: 1-3/4" / open, Bottom End Cap: 1-3/4" / open

C-4308

C-4308
C-4308, 25 SQ. FT. SONFARREL REPL. 4-15/16" Outside Diameter, 14-9/16" Tall, 25 sq. ft. Sonfarrel , Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4309
C-4309, 10 SQ.FT. GENERAL FOAM   4-3/4" Outside Diameter, 8" Tall,  10 sq. ft. General Foam Plastics, Top End Cap: 1-3/4" / open, Bottom End Cap: 1-3/4" / open

C-4310

C-4310
C-4310, 10 SQ.FT., 4" SKIM FILTER 4-1/4" Outside Diameter, 4" Tall,  10 sq. ft. skim filter, Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open
C-4311
C-4311, 45 SQ.FT., 12-1/4" FILTER 4-15/16" Outside Diameter, 12-1/4" Tall,  45 sq. ft. spa filt, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4312
C-4312, 12 SQ.FT. HAYWARD CX120-RE   4-5/8" Outside Diameter, 11-7/8" Tall,  12 sq. ft. Hayward C120RE, Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open

C-4313

C-4313
C-4313, 2.5 SQ. FT. AQUA LEISURE SIZE "1" 4-1/4" Outside Diameter, 3-3/4" Tall,  2.5 sq.ft. Aqua Leisure Size "1", Intex Sand-n-Sun Size "D", Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open
C-4315
C-4315, 15 SQ. FT. ICON SPAS 4-1/4" Outside Diameter, 7-1/8" Tall,  15 sq.ft. Icon Spas, Top End Cap: semi-circular handle, Bottom End Cap: 2" / open

C-4316

C-4316
C-4316, 16 SQ. FT. SPLASH TUB 4-15/16" Outside Diameter, 5-1/2" Tall,  16 sq.ft. Splash Tub, Top End Cap: closed, Bottom End Cap: 1-9/10" / open

C-4320

C-4320
C-4320, 20 SQ.FT. HAYWARD CX200-RE   4-5/8" Outside Diameter, 11-7/8" Tall, 20 sq. ft. Hayward CX200RE, American Commander II (in-line), Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open

C-4321

C-4321
C-4321, 25 SQ.FT. RAINBOW LEAF CARTRIDGE   4-15/16" Outside Diameter, 13-5/16" Tall,  Rainbow Leaf Canister, Top End Cap: closed w/ raised ring, Bottom End Cap: 2-1/8" / open

C-4324

C-4324
C-4324, 25 SQ.FT. SKIM FILTER W/ 1.9" BOTTOM ID 4-5/8" Outside Diameter, 9-3/4" Tall,  25 sq.ft. Pleatco skim filter, Spa Manufacturers, Gatsby Spas, Top End Cap: molded cone handle, Bottom End Cap: 1-9/10" / open

C-4325

C-4325
C-4325, HAYWARD CX225-RE, AMER COMM II 4-5/8" Outside Diameter, 11-7/8" Tall,  25 sq. ft. Hayward CX225RE, American Commander II (in-line), Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open (Hayward original is 4-3/4" OD and 11-13/16" overall length. American original is 4-11/16" overall length.)

C-4326

C-4326
C-4326, 25 SQ.FT. WATERWAY   4-15/16" Outside Diameter, 13-5/16" Tall, 25 sq. ft. Rainbow, Waterway Plastics, Custom Molded Products , Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4328

C-4328
C-4328, 25 SQ.FT. SANTANA   4-15/16" Outside Diameter, 9-13/16" Tall,  25 sq. ft. Santanna, Top End Cap: closed, Bottom End Cap: 2-1/8" / open

C-4329

C-4329
C-4329, 25 SQ. FT. ICON SPAS 4-1/4" Outside Diameter,  12" Tall,  25 sq.ft. Icon Spas, Top End Cap: semi-circular handle, Bottom End Cap: 2" / open

C-4332

C-4332
C-4332, 32 SQ.FT. MARTEC   4-15/16" Outside Diameter, 11-7/8" Tall,  32 sq. ft. Martec, Sonfarrel, Advantage Mfg., Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4335

C-4335
C-4335, 35 SQ.FT. RAINBOW 9.25 O/L   4-15/16" Outside Diameter, 9-1/4" Tall, 35 sq. ft. Rainbow, Waterway Plastics, Custom Molded Products, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4339
C-4339, 40 SQ.FT. WATERWAY   4-15/16" Outside Diameter, 11-1/4" Tall,  40 sq. ft. Waterway Plastics, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4340

C-4340
C-4340, 40 SQ.FT. DIMENSION ONE   4-15/16" Outside Diameter, 11-5/8" Tall,  40 sq. ft. Dimension One Spas, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4345

C-4345
C-4345, 45 SQ.FT. SANTANA 14-7/8   4-15/16" Outside Diameter, 14-7/8" Tall,  45 sq. ft. Santanna, Top End Cap: closed, Bottom End Cap: 2-1/8" / open

C-4346

C-4346
C-4346, 45 SQ.FT. SANTANA 17-3/4   4-15/16" Outside Diameter, 17-3/4" Tall,  45 sq. ft. Santanna, Top End Cap: closed, Bottom End Cap: 2-1/8" / open
C-4347
C-4347, 45 SQ.FT. SANTANA 14-7/8   4-15/16" Outside Diameter, 14-7/8" Tall, 45 sq. ft. Santanna , Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4349

C-4349
C-4349, 50 SQ.FT. ADVANTAGE ELECTRIC   4-15/16" Outside Diameter, 17-3/8" Tall,  50 sq. ft. Advantage Electric, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4350

C-4350
C-4350, 50 SQ.FT. GRECIAN SPA   4-5/8" Outside Diameter, 23-3/4" Tall,  50 sq. ft. Grecian Spa, Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open

C-4351

C-4351
C-4351, 50 SQ.FT. ICON SPAS 4-1/4" Outside Diameter, 23-3/4" Tall,  50 sq.ft. Icon Spas, Top End Cap: semi-circular handle, Bottom End Cap: 2-5/16" / open w/ molded o-ring (Product has 1 blue and 1 orange end cap.)

C-4360

C-4360
C-4360, 60 SQ.FT. ICON SPAS 4-1/4" Outside Diameter, $23-3/4" Tall,  60 sq.ft. Icon Spas, Top End Cap: semi-circular handle, Bottom End Cap: 2" / open

C-4401

C-4401
C-4401, RAINBOW DSF-35   (2 PER SET) 4-15/16" Outside Diameter, 4-5/8" Tall,  Rainbow DSF-35, Waterway Plastics, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open (2 cartridges per set with stick handle.)

C-4402

C-4402
C-4402, 20 SQ.FT. AQUA SPA   4-5/8" Outside Diameter, 9-3/4" Tall,  20 sq. ft. Aqua Spa, Top End Cap: molded cone handle, Bottom End Cap: 1-7/8" / open w/ slots
C-4403
C-4403, 25 SQ.FT. NEMCO   4-5/8" Outside Diameter, 11-5/8" Tall,  25 sq. ft. Nemco, Top End Cap: molded cone handle, Bottom End Cap: 1-3/8" / open

C-4405

C-4405
C-4405, RAINBOW DSF-50   (2 PER SET) 4-15/16" Outside Diameter, 6-5/8" Tall,  Rainbow DSF-50, Waterway Plastics, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open (2 cartridges per set with stick handle.)
C-4428
C-4428, 25 SQ.FT. SANTANA 9-13/16   4-15/16" Outside Diameter, 9-13/16" Tall,  25 sq. ft. Santanna, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4429

C-4429
C-4429, 30 SQ.FT. NEMCO   4-15/16" Outside Diameter, 10-3/8" Tall,  30 sq. ft. Nemco, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4430
C-4430, 30 SQ.FT. SANTANA 11-7/8   4-15/16" Outside Diameter, 11-7/8" Tall,  30 sq. ft. Santanna, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4431
C-4431, 30 SQ.FT. LIFESTYLE 10.375  4-15/16" Outside Diameter, 10-3/8" Tall,  30 sq. ft. skim filter, Lifestyle, Top End Cap: closed, Bottom End Cap: 2-1/8" / open

C-4440

C-4440
C-4440, 40 SQ.FT. SUNDANCE   4-5/8" Outside Diameter, 16-3/4" Tall,  40 sq. ft. Sundance Spas, Top End Cap: castle, Bottom End Cap: 2-1/16" / open

C-4449

C-4449
C-4449, 45 SQ.FT. SANTANA 17-3/4   4-15/16" Outside Diameter, 17-3/4" Tall,  45 sq. ft. Santanna, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open
C-4600
C-4600, 8 SQ.FT. MUSKIN A2300   4-5/16" Outside Diameter, 8" Tall,  8 sq.ft. Muskin A2300, Top End Cap: closed, Bottom End Cap: 2-3/16" / open
C-4601
C-4601, 16 SQ.FT. LOMART W/CORE   4-3/4" Outside Diameter, 18" Tall,  16 sq.ft. Lomart 60-4316, Top End Cap: 1-1/4" / open, Bottom End Cap: 2-7/16" / open
C-4602
C-4602, 4-1/2" x 8", MUSKIN, NO CORE 4-5/16" Outside Diameter, 8" Tall,  Muskin, Top End Cap: 2-3/16" / open, Bottom End Cap: 2-3/16" / open (This product has no center core. Original is 4-1/2” OD.)

C-4603

C-4603
C-4603, 9 SQ.FT. HAUGH'S, W/CORE 4-1/4" Outside Diameter, 10-7/8" Tall,  9 sq. ft. Haugh's, Jacuzzi Leisure C-11, Top End Cap: 1-15/16" / open, Bottom End Cap: 1-15/16" / open
C-4604
C-4604, 15 SQ.FT. HAUGH'S, W/CORE 4-1/4" Outside Diameter, 17-7/8" Tall,  15 sq. ft. Haugh's, Jacuzzi Leisure C-22, Top End Cap: 1-15/16" / open, Bottom End Cap: 1-15/16" / open
C-4605
C-4605, 8 SQ.FT. MUSKIN   4-5/16" Outside Diameter, 8" Tall,  8 sq.ft. Muskin FP A2027, Sears, Haugh Products, Top End Cap: 2-3/16" / open, Bottom End Cap: 2-3/16" / open
C-4606
C-4606, Coleco F-120 4-1/4" Outside Diameter, 8" Tall,  Coleco F-120, Top End Cap: 1-15/16" / open, Bottom End Cap: 1-15/16" / open

C-4607

C-4607
C-4607, COLECO F-120 W/CORE   4-1/4" Outside Diameter, 8" Tall,  Coleco F-120/DR-7, Krystal Klear Models 108R/12, Intex Sand-n-Sun, Wet Set, Easy Set Size "A" or "C", Aqua Leisure Size "2", Top End Cap: 1-15/16" / open, Bottom End Cap: 1-15/16" / open
C-4608
C-4608, COLECO F-110/CR-8 NO CORE   4-3/4" Outside Diameter, 8" Tall,  Coleco F-110, CR-8, Cyclone Pool Vac, Top End Cap: 1-1/4" / open, Bottom End Cap: 2-7/16" / open (This product has no center core.)
C-4609
C-4609, COLECO F-110/CR-8 W/CORE   4-3/4" Outside Diameter, 8" Tall,  Coleco F-110, CR-8, Top End Cap: 1-1/4" / open, Bottom End Cap: 2-7/16" / open

C-4610

C-4610
C-4610, STA-RITE TX-15   4-1/2" Outside Diameter, 9-3/4" Tall,  Sta-Rite TX-15, Top End Cap: 1-1/16" / open, Bottom End Cap: 1-1/16" / open
C-4611
C-4611, COLECO DR-11 W/CORE   4-3/4" Outside Diameter, 11" Tall,  Coleco F-112, F-350, CR-11, DR-11, Top End Cap: 1-1/4" / open, Bottom End Cap: 2-7/16" / open

C-4616

C-4616
C-4616, COLECO DR-16 W/CORE   4-3/4" Outside Diameter, 16" Tall,  Coleco F-750, F-775, F-850, F-875, DR-16, Top End Cap: 1-1/4" / open, Bottom End Cap: 2-7/16" / open
C-4618
C-4618, COLECO DR-18 W/CORE   4-3/4" Outside Diameter, 18" Tall,  Coleco F-225, F-235, F-345, DR-18, Lomart 60-4314, Top End Cap: 1-1/4" / open, Bottom End Cap: 2-7/16" / open

C-4620

C-4620
C-4620, 20 SQ.FT. AMERICAN IN-LINE   4-5/8" Outside Diameter, 11-7/8" Tall,  20 sq. ft. American Commmander II (in-line), Top End Cap: 2-1/16" / open, Bottom End Cap: 2-1/16" / open (The C-4620 has been discontinued by Unicel. Use C-4320.0

C-4625

C-4625
C-4625, 25 SQ.FT. RAINBOW IN-LINE   4-15/16" Outside Diameter, 13-5/16" Tall,  25 sq. ft. Rainbow, Waterway Plastics, Custom Molded Products, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4637

C-4637
C-4637, 37 SQ.FT. RAINBOW IN-LINE   4-15/16" Outside Diameter, 13-5/16" Tall,  37 sq. ft. Rainbow, Waterway Plastics, Morgan Spas, Leisure Bay Spas, Custom Molded Products, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open (37 sq.ft. C-4637 is an upgrade to 25 sq.ft. C-4326 and C-4625 cartridges)

C-4950

C-4950
C-4950, 50 SQ.FT. RAINBOW IN-LINE   4-15/16" Outside Diameter, 13-5/16" Tall, 50 sq. ft. Rainbow, Waterway Plastics, Custom Molded Products , Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open (50 sq.ft. C-4950 is an upgrade to 25 sq.ft. C-4326 and C-4625 cartridges.)

C-4970

C-4970
C-4970, 75 SQ.FT. WATERWAY   4-15/16" Outside Diameter, 23-5/8" Tall,  75 sq. ft. Waterway Plastics, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4975

C-4975
C-4975, 75 SQ.FT. RAINBOW RTL-75   4-15/16" Outside Diameter, 20-1/8" Tall,  75 sq. ft. Rainbow RTL-75, Custom Molded Products, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4995

C-4995
C-4995, 95 SQ.FT., WATERWAY   4-15/16" Outside Diameter, 23-5/8" Tall,  95 sq. ft. Waterway Plastics, Cal Spas, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open

C-4999

C-4999
C-4999, 100 SQ.FT. RAINBOW IN-LINE   4-15/16" Outside Diameter, 26-11/16" Tall,  100 sq. ft. Rainbow RTL-100, Top End Cap: 2-1/8" / open, Bottom End Cap: 2-1/8" / open