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Spa Manufacturers Starting with U

Model
Sq. Ft.
O.D.
Length
Top/Bottom End Cap
OEM Part #
Part #

Unicel

15 sq.ft. skim filter

15

4-5/8”

5-3/16”

w/ injection molded 1-1/2” SAE thread

 

4CH-15

 13 sq.ft. top load

13

4-5/8”

4-5/8”

w/ 1-1/2” male thread/MPT

 

4CH-19

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 20 sq.ft. top load

20

4-5/8”

6-3/4”

w/ 1-1/2” male thread/MPT

 

4CH-20

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 19 sq.ft. top load

19

4-5/8”

8”

w/ 1-1/2” male thread/MPT

 

4CH-21

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 25 sq.ft.

25

4-15/16”

6-5/8”

w/ 1-1/2” male thread/MPT

 

4CH-22

Note: Replacement for Freeflow Spas.

 25 sq.ft.

25

4-15/16”

6-5/8”

w/ 1-1/2” male thread/MPT

 

4CH-23

Note: Replacement for Freeflow Spas.

 25 sq.ft. top  load

25

4-5/8”

9-3/4”

w/ 1-1/2” male thread/MPT

 

4CH-24

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 30 sq.ft. top load

30

4-5/8”

11-7/8”

w/ 1-1/2” male thread/MPT

 

4CH-30

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 35 sq.ft. top load

35

4-5/8”

16”

w/ 1-1/2” male thread/MPT

 

4CH-35

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

50 sq.ft. top load

50

4-5/8”

14-3/4”

w/ 1-1/2” male thread/MPT

 

4CH-50

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

65 sq.ft. top load

65

4-5/8”

19-5/8”

w/ 1-1/2” male thread/MPT

 

4CH-65

Note: Replaces any cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

20 sq.ft.

20

4-5/8”

6-3/4”

w/ 1-1/4” “SAE” thread

 

4CH-920

Note: Replacement for Saratoga Spas

20 sq.ft.

20

4-5/8”

7-1/4”

w/ injection molded 1-1/2” “SAE” thread

 

4CH-925

Note: Replacement for Strong Industries

25 sq.ft. top load

25

4-15/16”

13-1/2”

w/2”female SAE thread

 

4CH-926

Note: Replacement for Rising Dragon, Waterway, Custom Molded Plastics

35 sq.ft. top load

35

4-15/16”

9-1/4”

w/2”female SAE thread

 

4CH-935

Note: Replacement for Rising Dragon, Waterway, Custom Molded Plastics

 40 sq.ft. top load

40

4-5/8”

15”

w/ 1-1/2” “SAE” thread

 

4CH-940

Note: Replacement for Dimension One Spas.

 50 sq.ft. top load

50

4-15/16”

13-1/2”

w/2”female SAE thread

 

4CH-949

Note: Replacement for Rising Dragon.

 25 sq.ft. top load

25

4-5/8”

12”

w/ 1-1/2” “SAE” thread

 

4CH-950

Note: Replacement for Dimension One Spas.

20 sq. ft.

20

5-3/8”

7”

w/ 3” male thread/MPT

 

5CH-203

Note: Substitute for LA Spas sock filter.

25 sq.ft. 

25

5-5/8”

6”

w/ 1-1/2” male thread /MPT

 

5CH-25

Note: Replacement for Elite Spas by Maax.

35 sq.ft. 

35

5-5/8”

8”

w/ 1-1/2” male thread /MPT

 

5CH-35

Note: Replacement for Elite Spas by Maax.

35 sq.ft. top load

35

5-3/16”

12-1/2”

w/ 2” “SAE” thread

 

5CH-352

Note: Replacement for Marquis Spas.

40 sq.ft. 

35

5-3/16”

10-3/4”

w/ 2” “SAE” thread

 

5CH-402

Note: Replacement for Del Sol Spas.

45 sq.ft. 

40

5-3/16”

10”

w/ 1-1/2” “SAE” thread

 

5CH-45

Note: Replacement for Freeflow Spas.

 50 sq.ft. top load

50

5-3/16”

12-1/2”

w/ 2” male thread/MPT

 

5CH-502

Note: Replacement for Marquis Spas.  Unicel part number was formerly C-5303.

75 sq.ft. top load /front access

75

5-3/16”

16-1/8”

w/ 2” male thread/MPT

 

5CH-752

Note: Replacement for Cal Spas.

25 sq.ft. top load

25

6”

5-1/2”

w/ 1-1/2” male thread/MPT

 

6CH-25

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 25 sq.ft. top load

25

6”

7”

w/ 1-1/2” male thread/MPT

 

6CH-26

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

35 sq.ft. top load

35

6”

9-7/8”

w/ 1-1/2” male thread/MPT

 

6CH-35

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 35 sq.ft. skim Filter

35

6”

8”

w/2” male thread/MPT

 

6CH-352

Note: Replacement for Artesian Spas.

 45 sq.ft. top load

45

6”

12-3/8”

w/ 1-1/2” male thread/MPT

 

6CH-45

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

 47 sq.ft. top load

47

6”

9-1/8”

w/ 1-1/2” male thread/MPT

 

6CH-47

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

50 sq.ft. top load

50

6”

13-7/16”

w/ 1-1/2” male thread/MPT

 

6CH-49

Note: Replacement for Sunrise Spas

50 sq.ft. top load

50

6”

13-7/16”

w/ 1-1/2” male thread/MPT

 

6CH-50

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

50 sq.ft.

50

6-3/4”

8”

w/ 2” male thread/MPT

 

6CH-502

Note: Replacment for Artesian Spas

60 sq.ft. top load

60

6”

16-1/4”

w/ 1-1/2” male thread/MPT

 

6CH-60

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

75 sq.ft. top load

75

6”

19-3/4”

w/ 1-1/2” male thread/MPT

 

6CH-75

Note: Replaces any 6” or 7” OD cartridge that has an MPT fitting or a 1.9” id w/ disposable adapter.

25 sq.ft. top load

25

6”

5-1/2”

w/ 1-1/2” SAE thread

 

6CH-924

Note: Replacement for Sunrise Spas

25 sq.ft. top load / front access

25

6”

8-1/4”

w/ injection molded 1-1/2” SAE thread

 

6CH-925

45 sq.ft. front access

45

6”

8-1/4”

w/ 1-1/2” “SAE” thread

 

6CH-940

45 sq.ft. front access

45

6”

8-1/4”

w/ 1-3/4” male slip fitting

 

6CH-941

45 sq.ft. front access

45

6”

8-1/4”

w/ 1-1/2” “SAE” thread

 

6CH-942

45 sq.ft. top load

45

6”

13-1/2”

w/ 1-1/2” “SAE” thread

 

6CH-945

Note: Replacement for Jacuzzi Premium Spas

60 sq.ft. top load/front access

60

6”

17-1/2”

w/ 1-1/2” “SAE” thread

 

6CH-959

Note: Replacement for Jacuzzi Premium Spas

52 sq.ft. top load/front access

52

6-3/4”

15-1/2”

w/ 1-1/2” “SAE” thread

 

6CH-960

Note: Replacement for Jacuzzi Premium Spas

60 sq.ft. top load/front access

60

6-3/4”

15-1/2”

w/ 2” SAE thread

 

6CH-961

Note: Replacement for Jacuzzi Premium. Unicel replacement requires injection molded semi-circular handle (not furnished)

 32 sq.ft. top load

32

7”

8”

w/ 1-1/2” male thread/MPT

 

7CH-32

Note: Replacement for Coleman Spas.

 32 sq.ft. top load

32

7”

8”

w/ 2” male thread/MPT

 

7CH-322

Note: Replacement for Coleman Spas and Artesian Spas.

 40 sq.ft. top load

40

7”

9-3/4”

w/ 1-1/2” male thread/MPT

 

7CH-40

Note: Replacement for Coleman Spas and Vita Spas.

 40 sq.ft. top load

40

7”

9-3/4”

w/ 2” male thread/MPT

 

7CH-402

Note: Replacement for Coleman Spas.

50 sq.ft. top load

50

7”

14-3/4”

w/ 1-1/2” male thread/MPT

 

7CH-50

Note: Replacement for Coleman Spas and Vita Spas.

50 sq.ft. top load

50

7”

14-3/4”

w/ 2” male thread/MPT

 

7CH-502

Note: Replacement for Coleman Spas.

52 sq.ft. top load

52

7”

10-1/2”

w/ 2” male thread/MPT

 

7CH-552

Note: Replacement for Dimension One Spas.

75 sq.ft. top load

75

7”

14-3/4”

w/ 2” male thread/MPT

 

7CH-752

Note: Replacement for Sundance Spas.

90 sq.ft. top load

90

7”

19”

w/ 1-1/2” male thread/MPT

 

7CH-90

Note: Replacement for Dimension One Spas.

52 sq.ft. top load

52

7”

10-1/2”

w/ 1-1/2” “SAE” thread

 

7CH-975

Note: Replacement for Dimension One Spas.

95 sq. ft.
95
8"
15-1/2"
w/2” male thread/MPT   8CH-102
Note: Replacement for Sundance Spas, Jacuzzi.

120 Sq. Ft. top load

120

8”

18”

w/2” male thread/MPT

 

8CH-202RA

Note: Replacement for Diamante Spas. Manufactured with Reemay Advantage with Microban

50 Sq. Ft. top load/front access

50

8-1/2”

7-1/4”

w/ 2” male thread/MPT

 

8CH-502

Note: Replacement for Vita Spas

60 sq.ft. top load

60

8”

11-5/8”

w/ 2” male thread/MPT

 

8CH-60

60 sq.ft. top load

60

8”

9-1/4”

w/ 2” male thread/MPT

 

8CH-66

Note: Replacement for Master Spas.

85 Sq. Ft.

85

8”

12-3/4”

w/2” male thread/MPT

 

8CH-852RA

Note: Replacement for Diamante Spas. Manufactured with Reemay Advantage with Microban

45 Sq. Ft.

45

8”

6”

w/2” SAE thread

 

8CH-950

Note: Replacement for Bullfrog Spas

US Spas

 

25

4-15/16”

13-5/16”

2 1/8" Open

 

C-4326

 

50

4-15/16”

13-5/16”

2 1/8" Open

 

C-4950

US Tooling & Spa

 

120

8”

18”

w/ 2” male thread/MPT

 

8CH-202RA

 

85

8”

12-3/4”

w/ 2” male thread/MPT

 

8CH-852RA

 

10

4-1/4”

4”

 

 

C-4310

 

50

4-15/16”

6-5/8”

 

 

C-4405

 

50

4-15/16”

13-5/16”

2 1/8" Open

 

C-4950

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