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HOW TO FIND A FILTER CARTRIDGE REPLACEMENT

  1. Mesure the outside diameter of the cartridge (in inches + or - 1/32").
  2. Measure the cartridge length (in inches + or - 1/16") including end caps but excluding any handles or other extensions. We recommends measuring through the center (if possible) rather than along the outside edge.
  3. Identify the cartridge outside edge end cap configuration using chart at the bottom of this page. If the top and or bottom is "open," measure the inside diameter (in inches, + or - 1/32") of the top and or bottom.
  4. Record the OEM name and model of the filter cartridge that came out of the equipment (if possible).
  5. Count th enumber of pleats (+ or - 2 pleats) and note whether there is a center core or not.

Unicel 7000 Series Filters

3-3-12

Search tips:

The series of the filters (i.e. 2000 series) indicates the diameter of the filter. For example if you had a filter that is 2-3/4" wide then it would be a 2000 series filter. If you had a filter that was 7-1/2" in diameter it would be a 7000 series filter. 

Special filters that are closed on the top and have male threads on the bottom would be found in the CH series filters. The first number in the part number would indicate the diameter of the filter as indicated above. Example 6CH50 would be about 6" in diameter.

All measurements are in inches and top and bottom are open unless noted. To match handle types see the chart below or click on the handle description.

Unicel #

Manufacture

Square Ft.

Pleat Count

Top

Bottom

OD

Length

Price

QTY

C-7301

Advantage Mfg

75

189

2-15/16"

2-15/16"

7-1/4"

14-9/16"

$43.95

Quantity:
 

 

C-7302

Advantage Mfg

100

169

2-15/16"

2-15/16"

7-1/4"

21-5/8"

$51.95

Quantity:
 

 

C-7303

Advantage Mfg

150

189

2-15/16"

2-15/16"

7-1/4"

28-13/16"

$67.95

Quantity:
 

 

C-7304

Jacuzzi CE

40

119

3"

3"

7"

13-11/16"

$37.95

Quantity:
 

 

C-7306

Jacuzzi CE

60

137

3"

3"

7"

17-11/16"

$49.95

Quantity:
 

 

C-7330

Micro Filter

30

265

4-1/8"

4-1/8"

7"

7-1/2"

$29.95

Quantity:
 

 

C-7335

Dimension One Spas

35

207

Closed w/ Y Stand Offs

Open T/L

7-1/8"

5-7/8"

$40.95

Quantity:
 

 

C-7350

Caldera Spas

50

200

Semi-Circle

2-11/16"

7"

10-3/4"

$37.95

Quantity:
 

 

C-7367

Dimension One Spas

75

215

Closed w/ Y Stand Offs

2"

7-1/8"

10-1/2"

$48.95

Quantity:
 

 

C-7370

Sundance Spas

75

154

Castle

2-1/2"

7-1/2"

17-3/4"

$49.95

Quantity:
 

 

C-7375

Caldear Spas New Style

75

216

Semi-Circle

2-11/16"

7"

14-3/4"

$43.95

Quantity:
 

 

C-7400

Gold Key

50

143

Semi-Circle

1-7/8"

7"

14-3/4"

$45.95

Quantity:
 

 

C-7401

Doughboy/Skim-line

20

127

Injection Molded knob Handle

1-1/2"

7"

6-1/2"

$30.95

Quantity:
 

 

C-7402

Doughboy/Skim-line

40

191

Injection Molded knob Handle

1-1/2"

7"

9-3/4"

$36.95

Quantity:
 

 

C-7403

Doughboy/Skim-line

60

144

Injection Molded knob Handle

1-1/2"

7"

17-5/8"

$46.95

Quantity:
 

 

C-7404

Baker Hydro UM35

35

156

Injection Molded knob Handle

IMCA*

7"

9-13/16"

$39.95

Quantity:
 

 

C-7405

Baker Hydro UM50

50

144

Injection Molded knob Handle

IMCA*

7"

14-3/4"

$41.95

Quantity:
 

 

C-7406

Baker Hydro UM75

75

162

Injection Molded knob Handle

IMCA*

7"

19-5/8"

$54.95

Quantity:
 

 

C-7407

Baker Hydro UM100

100

143

Injection Molded knob Handle

IMCA*

7"

29-3/8"

$67.95

Quantity:
 

 

C-7408

Baker Hydro UM150

150

162

Injection Molded knob Handle

IMCA*

7"

39-3/8"

$93.95

Quantity:
 

 

C-7409

Doughboy/Skim-line

90

144

Injection Molded knob Handle

1-1/2"

7"

26-1/4"

$65.95

Quantity:
 

 

C-7413

RecWarehouse

130

165

2-15/16"

2-15/16"

7-1/2"

28-15/16"

$63.95

Quantity:
 

 

C-7414

RecWarehouse

150

189

2-15/16"

2-15/16"

7-1/2"

28-15/16"

$62.95

Quantity:
 

 

C-7415

RecWarehouse

65

163

2-15/16"

2-15/16"

7-1/2"

14-13/16"

$39.95

Quantity:
 

 

C-7416

Martec/Sonfarrel

65

174

2-15/16"

2-15/16"

7-1/2"

14"

$50.95

Quantity:
 

 

C-7417

RecWarehouse

50

124

2-15/16"

2-15/16"

7-1/2"

14-13/16"

$34.95

Quantity:
 

 

C-7418

RecWarehouse

100

177

2-15/16"

2-15/16"

7-1/1"

20-13/16"

$51.95

Quantity:
 

 

C-7419

Martec/Sonfarrel

100

168

2-15/16"

2-15/16"

7-1/2"

21-7/8"

$71.95

Quantity:
 

 

C-7425

American/Premier

25

113

3"

3"

7"

9-13/16"

$30.95

Quantity:
 

 

C-7427

Waterco

25

103

3-1/16"

3-1/16"

7-1/4"

9-7/8"

$31.95

Quantity:
 

 

C-7430

Jacuzz/Cantar

110

193

Closed

4-1/16"

7-13/16"

22-13/16"

$69.95

Quantity:
 

 

C-7432

Softsider Spas/Pletco

32

175

Semi-Circle

1-9/10"

7"

8"

$33.95

Quantity:
 

 

C-7433

Purex/CF33/100

33

99

5-13/16"

5-13/16"

7"

14"

$29.95

Quantity:
 

 

C-7435

American/Prmier

35

156

3"

3"

7"

9-13/16"

$37.95

Quantity:
 

 

C-7437

American-Quantum

43.7

160

3"

3"

7"

11-13/16"

$38.95

Quantity:
 

 

C-7439

Pleatco/Softsider Spa

40

178

Semi-Circle

1-9/10"

7"

9-3/4"

$37.95

Quantity:
 

 

C-7440

Purex-CF40

40

155

2-15/16"

2-15/16"

7"

11-1/8"

$36.95

Quantity:
 

 

C-7441

Jacuzzi/Cantar

147

203

Closed

4-1/16"

7-13/16"

28-13/16"

$84.95

Quantity:
 

 

C-7442

Hayward CX410RE

40

120

3"

3"

7"

4-3/16"

$35.95

Quantity:
 

 

C-7447

Hayward CX470XRE

50

152

3"

3"

7"

14-3/16"

$43.95

Quantity:
 

 

C-7448

Waterco/Jandy CT50

50

136

3-1/16"

3-1/16"

7-1/4"

14-5/8"

$46.95

Quantity:
 

 

C-7449

Pleatco Vita Spa

50

144

Semi-Circle

1-9/10"

7"

14-3/4"

$35.95

Quantity:
 

 

C-7450

American/Premier

50

110

3"

3"

7"

19-5/8"

$42.95

Quantity:
 

 

C-7451

Caldera Spas

50

200

Semi-Circle

2" Male S

7"

10-3/4"

$39.95

Quantity:
 

 

C-7452

Jacuzzi/Cantar

179

204

Closed

4-1/16"

7-13/16"

34-13/16"

$102.95

Quantity:
 

 

C-7453

American/Premier

75

161

3"

3"

7"

19-5/8"

$57.95

Quantity:
 

 

C-7454

Waterco-Trimline CC150

150

201

3-1/16"

3-1/16"

7-1/4"

29-1/2"

$93.95

Quantity:
 

 

C-7455

Hayward CX550RE

55

105

3"

3"

7"

19-5/8"

$41.95

Quantity:
 

 

C-7457

Waterco

50

101

3-1/16"

3-1/16"

7-1/4"

19-5/8"

$42.95

Quantity:
 

 

C-7458

Hayward CX480XRE

56

171

3"

3"

7"

14-3/16"

$44.95

Quantity:
 

 

C-7459

Jandy CL340

85

130

3"

3"

7"

27"

$56.95

Quantity:
 

 

C-7460

Purex CF60

60

129

2-15/16"

2-15/16"

7"

19-5/8"

$49.95

Quantity:
 

 

C-7463

Fox-Wal-Pak

80

157

Semi-Circle

3-1/16"

7-7/8"

13-3/16"

$54.95

Quantity:
 

 

C-7464

Fox-Wal-Pak

110

208

Semi-Circle

3-1/16"

7-7/8"

17-3/4"

$71.95

Quantity:
 

 

C-7465

Sundance Spas

65

164

Castle

2-1/16"

7-1/2"

14-3/4"

$48.95

Quantity:
 

 

C-7466

Sundance Spas

65

164

Castle

2-5/8"

7-1/2"

14-3/4"

$48.95

Quantity:
 

 

C-7467

Purex CF67.5

67.5

177

2-5/16"

2-5/16"

7"

16"

$51.95

Quantity:
 

 

C-7468

Jandy Cl460

115

175

3"

3"

7"

27"

$64.95

Quantity:
 

 

C-7469

American Quantum

60

167

3"

3"

7"

14-1/8"

$45.95

Quantity:
 

 

C-7470

Waterway Crystal

80

170

3"

3"

7"

20"

$58.95

Quantity:
 

 

C-7471

Waterway Crystal

105

168

3"

3"

7"

26-1/16"

$65.95

Quantity:
 

 

C-7472

Waterwa Crystal

125

163

3"

3"

7"

32-1/16"

$74.95

Quantity:
 

 

C-7473

Jandy CT75

75

154

3-1/16"

3-1/16"

7-1/4"

19-5/8"

$63.95

Quantity:
 

 

C-7474

American Quantum

87.5

225

3"

3"

7"

16-1/2"

$63.95

Quantity:
 

 

C-7475

American/Premier

75

110

3"

3"

7"

29-3/8"

$57.95

Quantity:
 

 

C-7476

American Quantum

90

190

3"

3"

7"

20"

$64.95

Quantity:
 

 

C-7477

Hayward CX570RE

75

161

3"

3"

7"

19-5/8"

$45.95

Quantity:
 

 

C-7478

Water Co

75

101

3-1/16"

3-1/16"

7-1/4"

29-1/2"

$58.95

Quantity:
 

 

C-7479

Caldera Spa

75

216

Semi-Circle

2" Male S

7"

14-3/4"

$45.95

Quantity:
 

 

C-7480

Purex CF80

80

172

2-15/16"

2-15/16"

7"

19-5/8"

$60.95

Quantity:
 

 

C-7481

Purex

93.5

206

3"

3"

7"

19"

$65.95

Quantity:
 

 

C-7482

Jandy CL580

145

180

3"

3"

7"

33"

$77.95

Quantity:
 

 

C-7483

Hayward CX580XRE

81

176

3"

3"

7"

19-5/8"

$48.55

Quantity:
 

 

C-7487

Hayward CX870RE

100

164

3"

3"

7"

25-1/2"

$61.95

Quantity:
 

 

C-7488

Hayward CX880XRE

106

174

3"

3"

7"

25-1/2"

$64.95

Quantity:
 

 

C-7489

Hayward CX875RE

112

185

3"

3"

7"

25-1/2"

$66.95

Quantity:
 

 

C-7490

Hayward CX1380RE

137

176

3"

3"

7"

32-13/16"

$70.95

Quantity:
 

 

C-7491

PacFab Seahorse300

75

150

2-5/8"

2-5/8"

7"

18-7/16"

$52.95

Quantity:
 

 

C-7492

PacFab Seahorse300

100

150

2-5/8"

2-5/8"

7"

24-3/4"

$67.95

Quantity:
 

 

C-7493

PacFab Seahorse500

125

150

2-5/8"

2-5/8"

7"

30-7/16"

$76.95

Quantity:
 

 

C-7494

Hayward CX1280RE

131

169

3"

3"

7"

32-13/16"

$72.95

Quantity:
 

 

C-7495

Hayward CX1260RE

125

159

3"

3"

7"

32-13/16"

$69.95

Quantity:
 

 

C-7496

Purex CF105/13

105

172

2-15/16"

2-15/16"

7"

25-5/8"

$65.95

Quantity:
 

 

C-7497

Jandy CT100

100

134

3-1/16"

3-1/16"

7-1/4"

29-1/2"

$66.95

Quantity:
 

 

C-7498

American Quantum

125

202

3"

3"

7"

26"

$72.95

Quantity:
 

 

C-7499

American/Premier

100

142

3"

3"

7"

29-3/8"

$66.95

Quantity:
 

 

C-7603

Baker Hydro HM-12.5

12.5

113

Injection Molded knob Handle

IMCA*

7"

5"

$30.95

Quantity:
 

 

C-7604

Baler Hydro HM-25

25

113

Injection Molded knob Handle

IMCA*

7"

9-13/16"

$34.95

Quantity:
 

 

C-7605

Baker Hydro HM-50

50

110

Injection Molded knob Handle

IMCA*

7"

19-5/8"

$43.95

Quantity:
 

 

C-7606

Baker Hydro HM-75

75

108

Injection Molded knob Handle

IMCA*

7"

29-3/8"

$57.95

Quantity:
 

 

C-7607

Baker Hydro HM-100

100

110

Injection Molded knob Handle

IMCA*

7"

39-3/8"

$73.95

Quantity:
 

 

C-7610

Purex CF25

25

99

2-15/16"

2-15/16"

7"

11-1/8"

$29.95

Quantity:
 

 

C-7618

AquaTemp

50

135

2-15/16"

2-15/16"

7-1/4"

14-3/4"

$53.95

Quantity:
 

 

C-7619

AquaTemp

65

175

2-15/16"

2-15/16"

7-1/4"

14-3/4"

$45.95

Quantity:
 

 

C-7620

AquaTemp

75

135

2-15/16"

2-15/16"

7-1/4"

21-13/16"

$69.95

Quantity:
 

 

C-7621

AquaTemp

105

189

2-15/16"

2-15/16"

7-1/4"

21-13/16

$60.95

Quantity:
 

 

C-7622

AquaTemp

100

135

2-15/16"

2-15/16"

7-1/4"

29"

$71.95

Quantity:
 

 

C-7623

AquaTemp

135

182

2-15/16"

2-15/16"

7-1/4"

29"

$65.95

Quantity:
 

 

C-7624

Top Load

25

110

Semi-Circle

2-1/16"

7"

9-13/16"

$34.95

Quantity:
 

 

C-7625

American/Premier

25

113

3"

3"

7"

9-13/16"

$29.95

Quantity:
 

 

C-7626

Hayward CX250RE

25

111

3" w/gasket

3" w/g

7"

9-13/16"

$27.95

Quantity:
 

 

C-7630

Skim Filter

30

110

Semi-Circle

3"

7"

11-3/4"

$40.95

Quantity:
 

 

C-7632

Top Load

33

99

2-1/16"

2-1/16"

7"

14"

$39.95

Quantity:
 

 

C-7633

Purex CF-3300

33

99

2-15/16"

2-15/16"

7"

14"

$34.95

Quantity:
 

 

C-7641

Pacific Spa

40

115

Semi-Circle

3"

7"

14-3/4"

$46.95

Quantity:
 

 

C-7650

American/Premier

50

110

3"

3"

7"

19-5/8"

$46.95

Quantity:
 

 

C-7651

Purex CF50/150

50

110

2-15/16"

2-15/16"

7"

19-5/8"

$46.95

Quantity:
 

 

C-7652

Swimquip

50

110

3"

3"

7"

19-3/8"

$41.95

Quantity:
 

 

C-7655

Harmsco SC/TC55

 

232

3-1/2"

2-5/8"

7-1/2"

9-5/8"

NLA

Quantity:
 

 

C-7656

Hayward CX500RE

50

108

3"

3"

7"

19-5/8"

$39.95

Quantity:
 

 

C-7660

Pac-Fab

60

146

3-1/16"

3-1/16"

7-7/8"

14"

$43.95

Quantity:
 

 

C-7674

Harmsco SC/TC75

 

191

3-1/2" FT

2-5/8"

7-1/2"

15-3/16"

$88.95

Quantity:
 

 

C-7675

American/Premier

75

110

3"

3"

7"

29-3/8"

$65.95

Quantity:
 

 

C-7676

Hayward CX750RE

75

108

3"

3"

7"

29-7/16"

$53.95

Quantity:
 

 

C-7677

Swimquip

75

110

3"

3"

7"

29-1/8"

$59.95

Quantity:
 

 

C-7678

Pac-Fab

50

152

3-1/16"

3-1/16"

7-7/8"

11-1/8"

$40.95

Quantity:
 

 

C-7679

Pac-Fab

150

148

3-1/16"

3-1/16"

7-7/8"

33-3/8"

$91.95

Quantity:
 

 

C-7680

Pac-Fab

80

122

3-1/16"

3-1/16"

7-7/8"

22-1/8"

$54.95

Quantity:
 

 

C-7685

Harmsco SC/TC105

 

205

3-1/2"

2-5/8"

7-1/2"

19-1/2"

$69.95

Quantity:
 

 

C-7688

Wet Institute

133

170

3-1/16"

3-1/16"

7-7/8"

26-1/8"

$79.95

Quantity:
 

 

C-7697

Harmsco SC/TC155

 

200

3-1/2"

2-5/8"

7-1/2"

29-1/16"

$87.95

Quantity:
 

 

C-7698

Hayward CX1000RE

100

145

3"

3"

7"

29-7/16"

$63.95

Quantity:
 

 

C-7699

Pac-Fab

100

142

3-1/16"

3-1/16"

7-7/8"

22-1/8"

$63.95

Quantity:
 

 

*IMCA=Injected Molded Cone Adaptor.

Cartridge Filter Cleaning Instructions (Chlorine Users)

You should clean the filter element when the pressure increases 8 PSI (pounds per square inch) above the clean pressure. If you are using Baquacil®, Soft Swim® or some type of biquanide system you should first clean the element with a chemical specifically designed for this sanitizing system (see adjacent block for cleaning process). Spa filters require more frequent chemical cleanings than pools elements.

1. Remove the cartridge from the filter housing following the manufacture's instructions.

2. Use a garden hose with a straight flow nozzle to wash down the filter element. Work from the top down, holding the nozzle at a 45 degree angle, and wash all the pleats with emphasis between pleats.

3. Rinse until all dirt and debris are gone. At this point if the element does not need to be chemically cleaned you can return the element back to the filter housing. However, filter elements tend to work better if they go in the filter housing dry so it is a good idea to have 2 filters one would be in use while the other is being cleaned and dried.

4. If you are chemically cleaning the filter, follow the directions on the filter cleaner manufacture's bottle or web site for how to apply the solution.

5. Rise the cartridge again to insure the chemical cleaning solution has been removed.

6 If the filter has a coating of algae, calcium carbonate (scale), iron (looks brown), or other minerals, soak the cartridge in a solution of one part acid to twenty parts of water until all bubbling stops. WARNING: Failure to remove all oils and cleaning solutions before acid soaking will result in a permanent restriction of water flow and cause premature cartridge failure.

7. Rinse the cartridge clean and let dry (see note in step 3).

Note: DPW does not recommend the use of diatomaceous earth (DE) with cartridge filters. DE particles will become trapped in the body of the media and shorten the cartridge's life.  If desired, a cellulose fiber (Zeofiber) can be used in moderation.

 

Cartridge Cleaning Supplement for Biguanide Users

Unlike chlorine which oxidizes the bacteria in the water, the active ingredient in biquanide systems, polyhexamethylene biqunaide (PHMB), destroys the bacterial cells. PHMB locates and binds the bacterial surfaces, then attacks the outer bacterial wall. Once this wall has been compromised, the inner cell membrane (the cytoplasmic membrane) is destroyed. This destruction allows the cell contents to disperse into their surrounds where they are further broken down into their elemental parts by non-chlorine oxidizer such as Baqua Shock® or Soft Swim C®.  A simpler explanation; If you had a log in a fire place and you set fire to it when it was done burning you would have very little of the original log left over. This is the equalivent of using chlorine in the pool. However if you used a saw you would have all of the log left over in a huge pile of saw dust. This is what a biquanide system does. So there is far more mess to clean up clogging the filter faster.

In addition, Baqua Shock® and Soft Swim C® are mild coagulatns which combine bacterial cells and other small particles in the environment into particles large enough to be trapped by the filter. The resulting deposit is gray sticky film on the media which can only be removed by using Baqua Clean® or Soft Swim Filter Cleaner®. If trisodium phosphate (TSP) or any TSP type cleaner is used prior to stripping the film, the substance cannot be removed from the media and the filter cartridge must be replaced.

WARNING: Follow all manufacture's instructions, warnings and cautions when using Baquacil® or Soft Swim® products.

     

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