Replacement Guide
 Spa Cartridges Master List

To Order, Remember Unicel Part Number and Click to go to Order Page

Brand of Spa or Equipment Description
 Unicel P/N
Accent Spas 10 sq. ft. 4-1/4" x 4"
25 sq. ft. 4-15/16" x 13-5/16"
40 sq. ft. 4-15/16" x 11-1/4"
50 sq. ft. 4-15/16" x 13-5/16"
 C-4310
C-4326
C-4339
C-4950
Acryx-Maax Spas (Canada)
(Infinity Spas)
(Lifestyle Spas)
(Savannah/Statewood Spas)		 25 sq. ft. 4-15/16" x 13-5/16"
37 sq. ft. 4-15/16" x 13-5/15"
50 sq. ft. 4-15/16" x 13-5/16"
95 sq. ft. 4-15/16" x 23-5/8"		 C-4326
C-4637
C-4950
C-4995
Advanced Spa Design
LA Spas		 22 sq. ft. 11-7/8" (closed top) (old)
25 sq. ft. 9-3/4" w/ 1-1/2" MPT
50 sq. ft. 14-3/4" w/ 1-1/2" MPT
50 sq. ft. 6" x 9" w/ 1-1/2" MPT
50 sq. ft. 6" x 13-7/16" w/ 1-1/2" MPT		 C-5621
4CH-24
4CH-50
6CH-47
6CH-50
Addison Spas 50 sq. ft. 14-3/4" w/ 1-1/2" MPT 4CH-50
Alcove 8 sq. ft. 3-1/4" x 9-3/4"
19 sq. ft. 8" w/ 1-1/2" MPT		 C-3608
4CH-21
Alps Spas
(Associated Leisure Products)		 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4625
C-4950
American Classic Spas 50 sq. ft. 14-3/4" w/ 1-1/2" MPT 4CH-50
American Spas 25 sq. ft. 7" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 8-1/4" w/ SAE fitting		 6CH-26
C-4950
6CH-940
Amish Country
(Marquis)		 25 sq. ft. 11-7/8" skim filter (old)
40 sq. ft. 19-5/8" skim filter (old)
35 sq. ft. 11-7/8" w/ closed top (new)
60 sq. ft. 19-5/8" w/ closed top (new)		 C-5626
C-5637
C-5423
C-5434
Apollo Spas 25 sq. ft. 4-5/8" x 11-7/8"
25 sq. ft. 4-11/16" x 11-7/8"
25 sq. ft. 4-15/16" x 13-5/16"
25 sq. ft. 5-11/16" x 10-3/8" w/ closed top
35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 4-15/16" x 13-5/16"		 C-4325
C-4327
C-4326
C-5601
C-4401
C-4950
Aqua Mystic 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
Aqua Spa 20 sq. ft. 4-5/8" x 9-3/4"
25 sq. ft. 6" x 9-3/4"		 C-4402
C-6601
Aber Hot Tub 50 sq. ft. 6" x 9" w/ 1-1/2" MPT 6CH-47
Aqua Tech Spas 35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 14-3/4" w/ 1-1/2" MPT fitting
50 sq. ft. 4-15/16" x 13-5/16"		 C-4401
4CH-50
C-4950
Aquiform-Infinity Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Aries Spas 25 sq. ft. 4-15/16" x 13-5/16" C-4625
Arizona Pacific
(DFA)		 35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
35 sq. ft. 9-3/4" w/ 1-1/2" MPT
50 sq. ft. 13-5/16" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)		 C-4401
6CH-35
6CH-50
C-4950
C-4405
Artesian Spas (Majestic Ind.) 25 sq. ft. 7" w/ 1-1/2" MPT 6CH-26
Baja Spas 50 sq. ft. 4-15/16" x 13-3/16"
100 sq. ft. 4-15/16" x 26-11/16"		 C-4950
C-4999
Beachcomber 35 sq. ft. 4-15/16" x 13-3/16" (2 per set)
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)		 C-4401
C-4405
Blue Falls Mfg. Ltd. (Canada) 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
Blue Pacific 25 sq. ft. 4-15/16" x 13-5/16"
30 sq. ft. 11-7/8" w/ 1-1/2" MPT
50 sq. ft. 13-15/16" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"		 C-4625
4CH-30
6CH-50
C-4950
Blue Ridge Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT 4CH-24
Bullfrog Spas 35 sq. ft. 4-15/16" x 9-1/4"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4335
C-4950
CTA Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT 4CH-24

Cal Spas

*See also
 C-7656
 C-7677
 C-8600
 C-8610

 50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 14-7/8"
100 sq. ft. 4-15/16" x 23-5/8"		 C-4950
C-4305
C-4995
Caldera Spas 50 sq. ft. 7" x 10-3/4" w/ 2" male slip fitting
75 sq. ft. 7" x 14-3/4" w/ 2" male slip fitting		 C-7451
C-7479
Catalina/Caribbean Spas 35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)
40 sq. ft. 8-1/4" w/ SAE		 C-4401
C-4405
6CH-940
Charisma Spas 10 sq. ft. skim filter
30 sq. ft. 11-7/8" w/ 1-1/2" MPT
50 sq. ft. 13-5/16" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"
45 sq. ft. 6" x 8-1/4"		 C-4310
4CH-30
6CH-50
C-4950
6CH-940
Clearwater Spas 50 sq. ft. 5-11/16" x 10-3/8"
35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)
45 sq. ft. 6" x 8-1/4"		 C-5300
C-4401
C-4405
6CH-940
Comfort Line Spas 12 sq. ft. 4-5/8" x 4-5/8" w/ handle top C-4302
Coast Spas (Canada) 50 sq. ft. 4-15/16" x 13-5/16"
95 sq. ft. 4-15/16" x 23-5/8"
100 sq. ft. 4-15/16" x 26-11/16"		 C-4950
C-4995
C-4999
Coleman Spas
(California Cooperage)

32 sq. ft. 8" w/ 1-1/2" MPT (P/N 3301-1018)
32 sq. ft. 8" w/ 2" MPT (P/N 3301-2109)
40 sq. ft. 4-15/16" x 11-1/4" (P/N 3301-2241)
40 sq. ft. 9-3/4" w/ 1-1/2" MPT (P/N 3301-1019)
40 sq. ft. 9-3/4" w/ 2" MPT (P/N 3301-2110)
50 sq. ft. 14-3/4" w/ 1-1/2" MPT (P/N 3301-1020)
50 sq. ft. 14-3/4" w/ 2" MPT (P/N 3301-2111)
50 sq. ft. 4-15/16" x 13-5/16" (P/N 3301-2145)
               Coleman Models after 1992:
50 sq. ft. 9" w/ 2" male slip fitting (P/N 3301-2261)
75 sq. ft. 13" w/ 2" male slip fitting (P/N 3301-2262)

 7CH-32
7CH-322
C-4339
7CH-40
7CH-402
7CH-50
7CH-502
C-4950

C-8450
C-8475
Dakota Spas 45 sq. ft. 4-15/16" x 12-1/4"
25 sq. ft. 4-15/16" x 13-5/16"
75 sq. ft. 4-15/16" x 20-1/8"
45 sq. ft. 6" x 8-1/4"		 C-4311
C-4326
C-4975
6CH-940
Dimension One Spas 25 sq. ft. 11-7/8" w/ 1-1/2" MPT (P/N 1561-14)
25 sq. ft. 11-7/8" ozone cartridge
25 sq. ft. 4-5/8" x 12" w/ SAE (P/N 1561-04)
40 sq. ft. 4-5/8" x 15" w/ SAE (P/N 1561-13)
40 sq. ft. 4-15/16" x 11-5/8" (P/N 1561) (Discontinued)
40 sq. ft. 17" ozone cartridge (P/N 1561-09)
50 sq. ft. 14-3/4" w/ 1-1/2" MPT (P/N 1561-05)
55 sq. ft. 11" w/ 2" MPT (P/N 1561-10) (new)
65 sq. ft. 19-5/8" w/ 1-1/2" MPT (P/N 1561-06)
75 sq. ft. 7" x 10-1/2" w/ SAE (P/N 1561-12)
75 sq. ft. 14-3/4" w/ 2" MPT (P/N 1561-02)
80 sq. ft. 23-3/4" w/ 1-1/2" MPT (P/N 1561-07) 		4CH-30
C-5402
4CH-950
4CH-940
C-4340

C-5404
4CH-50

7CH-552
4CH-65

7CH-975
7CH-752
4CH-65
Discovery Spas 30 sq. ft. 4-15/16" w/ closed top
35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)
50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-5/8" x 23-3/4"
60 sq. ft. 8" x 11-5/8" w/ 2" MPT		 C-4431
C-4401
C-4405
C-4950
C-4350
8CH-60
Dolphin Spas 13 sq. ft. 4-5/8" w/ 1-1/2" MPT
30 sq. ft. 11-7/8" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 14-7/8"		 4CH-19
4CH-30
C-4305
Dynasty Spas 35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
40 sq. ft. 4-15/16" x 11-1/4"
50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 14-3/4" w/ 1-1/2" MPT		 C-4401
C-4339
C-4950
4CH-50
Emerald Spas 8.5 sq. ft. 2-7/8" x 17-1/6"
14.5 sq. ft. 2-7/8" x 17-1/6"
25 sq. ft. 4-5/8" x 11-7/8"
25 sq. ft. 4-15/16" x 13-5/16"
25 sq. ft. 5" x 13-5/16"
32 sq. ft. 4-15/16" x 11-7/8"		 C-2303
C-2302
C-4325
C-4326
C-5625
C-4332
Esther Williams 25 sq. ft. 4-15/16" x 13-5/16"
35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
65 sq. ft. 13-5/16" w/ 1-1/2" MPT		 C-4625
C-4401
6CH-50
Florida Whirlpool
(Spillway Spas)		 30 sq. ft. 11-7/8" w/ 1-1/2" MPT
50 sq. ft. 14-3/4" w/ 1-1/2" MPT
50 sq. ft. 5-11/16" x 10-3/8"		 4CH-30
4CH-50
C-5300
Four Seasons 25 sq. ft. 6" x 9-3/4"
35 sq. ft. 6" x 14-3/4"
50 sq. ft. 6" x 19-5/8"		 C-6601
C-6603
C-6605
Fountain Valley Spas 45 sq. ft. 6-7/8" x 13-3/4"
45 sq. ft. 4-15/16" x 17-3/4"		 C-6445
C-4346
Freedom Spas
Franklin
Statesman
Revere		 30 sq. ft. 11-7/8" w/ 1-1/2" MPT 4CH-30
Statesman
Lexington
Enterprise
Aristocrat
Franklin		 45 sq. ft. 12-1/4" w/ 1-1/2" MPT 6CH-45
Concord
Patriot
Ambassador
Executive		 37 sq. ft. 4-15/16" x 13-5/16" C-4637
Liberty 35 sq. ft. 4-15/16" x 4-5/8" (2 per set) C-4401
Models after 1993: 50 sq. ft. 4-15/16" x 6-5/8" (2 per set)
50 sq. ft. 4-15/16" x 13-5/16"		 C-4405
C-4950
Gatsby Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT
25 sq. ft. 4-5/8" w/ 1.9" i.d.
35 sq. ft. 4-15/16" x 4-5/8" (2 per set)		 4CH-24
C-4324
C-4401
Gerico Spas 45 sq. ft. 6-15/16" x 17-5/8" C-6645
GPM Industries 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
Grecian Spas see Discovery Spas
Haugh's
(Niagara Whirlpool)		 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4625
C-4950
Hawkeye Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Heartland Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT 4CH-24
Heldor Spas 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4625
C-4950
Hollibaugh Spas 25 sq. ft. 7" x 9-13/16"
50 sq. ft. 7" x 19-5/8"
75 sq. ft. 7" x 29-3/8"		 C-7626
C-7656
C-7676
Hot Springs Spas
(Watkins Mfg.)		 30 sq. ft. 5-1/8" x 10-1/4" (P/N 31233)
33 sq. ft. 6" x 9" (P/N 31382)
35 sq. ft. 16" w/ 1-1/2" MPT
45 sq. ft. 6-3/8" x 11-7/8" (P/N 31115)		 C-5431 (4 oz.)
C-6433 (4 oz.)
4CH-35 (4 oz.)
C-6600 (4 oz.)
Hot Spring Spas (after 1990) 30 sq. ft. 6" x 10-1/2" (P/N 31489) C-6430 (4 oz.)
Hot Spot 25 sq. ft. 4-15/16" x 13-5/16" (P/N 33521) C-4326 (3 oz.)
Tiger River 65 sq. ft. 8-1/2" x 10-1/2" (P/N 31114) C-8465 (4 oz.)
Hydro Pool Industries
(Serenity Spas)		 25 sq. ft. 4-15/16" x 13-5/16"
35 sq. ft. 4-15/16" x 9-1/4"
75 sq. ft. 4-15/16" x 20-1/8"		 C-4625
C-4335
C-4975
Hydro Spa
(After Hours Spas)		 25 sq. ft. 9-3/4" w/ 1-1/2" MPT
35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 4-15/16" x 13-5/16"		 4CH-24
C-4401
C-4950
Icon Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT 4CH-24
Imperial Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT 4CH-24
Jacuzzi Whirlpool Bath
Cambio 12 sq. ft. 2-7/8" x 19-1/2" (P/N 2945000) C-2612
Quanta 30 sq. ft. 6-7/8" x 14-7/8" (P/N 2730000) C-6300
Avanza, Celeste
Meridian, Sienna,
Virage 		25 sq. ft. 5-3/4" x 11-7/8" (P/N 2590000) C-5624
Caressa (pre-1986),
Espree, Espree II 		25 sq. ft. 5" x 13-5/16" (P/N 5475000) C-5625
Aero, Alexa, Arrow Plus, Caressa, Corsica,
Dectra, Lazer II, Lexus LC, Lexus Plus,
Meridian II, Palio, Palio Plus, Polara,
Quantum,Quantum Plus, Razza, Santina,
Santina Plus, Solaris, Solaris Plus, Tirage,
Tirage Plus, Vectra,Vectra II, Venterra, 380 		25 sq. ft. 5-11/16" x 10-3/8" (P/N 6199000) C-5601
J.E.M. Spas
(Majestic Industries)		 25 sq. ft. 4-15/16" x 13-5/16"
25 sq. ft. 7" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"
95 sq. ft. 4-15/16" x 23-5/8"		 C-4625
6CH-26
C-4950
C-4995
Jetta Spas 60 sq. ft. 16-1/8" w/ 1-1/2" MPT 6CH-60
LA Spas 25 sq. ft. 9-3/4" w/ 1-1/2" MPT
50 sq. ft. 6" x 13-7/16" w/ 1-1/2" MPT
50 sq. ft. 6" x 9" w/ 1-1/2" MPT		 4CH-24
6CH-50
6CH-47
Legend Spas 35 sq. ft. 4-15/16" x 4-5/8"
50 sq. ft. 4-15/16" x 6-5/8"		 C-4401
C-4405
Leisure Bay Spas 13 sq. ft. 4-5/8" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"
75 sq. ft. 4-15/16" x 23-5/8"		 4CH-19
C-4950
C-4970
Lifestyle Spas
(Canada)		 35 sq. ft. 4-15/16" x 4-5/8" (2 per set)
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)
40 sq. ft. 7" x 9-3/4" w/ 1-1/2" MPT		 C-4401
C-4405
7CH-40
Marathon Spas 30 sq. ft. 11-7/8" w/ 1-1/2" MPT
50 sq. ft. 4-15/16" x 13-5/16"		 4CH-30
C-4950
Marquis Spas

50 sq. ft. 5-3/16" x 12-1/2" w/ 2" MPT (P/N 370-0237) New

25 sq. ft. skim filter (old)
40 sq. ft. skim filter (old)
35 sq. ft. 11-7/8" w/ closed top (P/N 37-0215)
50 sq. ft. 14-1/8" w/ closed top (P/N 37-0217)
60 sq. ft. 19-7/8" w/ closed top (P/N 37-0216)

C-5303

C-5626
C-5637
C-5423
C-5346
C-5434
Master Spas
(Ft. Wayne Spas)		 20 sq. ft. 6-3/4" w/ 1-1/2" MPT
25 sq. ft. 9-3/4" w/ 1.9" i.d.
45 sq. ft. 12-1/4" w/ 1-1/2" MPT
60 sq. ft. 8" x 9-1/2" w/ 2" MPT		 4CH-20
C-4324
6CH-45
8CH-66
Millennium Spas 40 sq. ft. 4-15/16" x 11-1/4"
50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 8-1/4" w/ SAE fitting		 C-4339
C-4950
6CH-940
Moonwater Spas 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
Moose Mountain Spas
(Canada)		 35 sq. ft. 4-15/16" x 9-1/4"
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)		 C-4335
C-4405
Morgan Spas 35 sq. ft. 5" x 13-5/16" (no core)
37 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-5635
C-4637
C-4950
Mountain Mist Spa
Mountain Springs Spa
Mountain Meadows Spa
Mountain Stream Spa		 25 sq. ft. 9-3/4" w/ 1-1/2" MPT 4CH-24
Nemco 25 sq. ft. 9-3/4" w/ 1-1/2" MPT
50 sq. ft. 14-3/4" w/ 1-1/2" MPT
25 sq. ft. 4-5/8" x 11-5/8"
30 sq. ft. 4-15/16" x 10-3/8"
50 sq. ft. 5-7/8" x 5-5/8"		 4CH-24
4CH-50
C-4403
C-4429
C-5405
Nordic Hot Tubs 28 sq. ft. 4-15/16" x 14-7/8"
25 sq. ft. 4-15/16" x 13-5/16"		 C-4301
C-4326
Northwest Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
PDC Spas 25 sq. ft. 4-15/16" x 13-5/16"
25 sq. ft. 7" x 9-13/16" w/ gasket
50 sq. ft. 7" x 19-5/8" w/ gasket		 C-4326
C-7626
C-7656
Pacific Spas
(Canada)		 47 sq. ft. 6" x 9-1/8" w/ 1-1/2" MPT 6CH-47
Pageant Spas 19 sq. ft. 8" w/ 1-1/2" MPT
45 sq. ft. 4-15/16" x 17-3/4"
50 sq. ft. 4-15/16" x 13-5/16"
45 sq. ft. 4-15/16" x 14-7/8"
60 sq. ft. 6" x 16-1/8"		 4CH-21
C-4449
C-4950
C-4305
C-6602
Phoenix Spas 37 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 6" x 8-1/4" w/ SAE		 C-4637
C-4950
6CH-940
QCA 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"
95 sq. ft. 4-15/16" x 23-5/8"		 C-4326
C-4950
C-4995
Quantum Spas 25 sq. ft. 4-5/8" x 9-3/4" C-4324
River Valley Spas 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
Rogers Spas 25 sq. ft. 5-3/16" x 11-7/8" C-5622
Romanesque 25 sq. ft. 5-3/16" x 11-7/8"
30 sq. ft. 5-3/16" x 14-3/4"		 C-5622
C-5627
Safari Spas
(Aquatic Industries)
 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"
25 sq. ft. 5-11/16" x 10-3/8"		 C-4326
C-4950
C-5601
Santana
(Conger Bros.)		 25 sq. ft. 4-15/16" x 9-13/16" w/ closed top
25 sq. ft. 4-15/16" x 9-13/16" w/ 2-1/8" i.d.
30 sq. ft. 4-15/16" x 11-7/8" w/ 2-1/8" i.d.
45 sq. ft. 4-15/16" x 14-7/8" w/ closed top
45 sq. ft. 4-15/16" x 14-7/8" w/ 2-1/8" i.d.
45 sq. ft. 4-15/16" x 17-3/4" w/ closed top
45 sq. ft. 4-15/16" x 17-3/4" w/ 2-1/8" i.d.		 C-4328
C-4428
C-4430
C-4345
C-4347
C-4346
C-4449
Saratoga Spas 19 sq. ft. 8" w/ 1-1/2" MPT
20 sq. ft. 6-3/4" w/ 1-1/2" MPT
25 sq. ft. 9-3/4" w/ 1-1/2" MPT
30 sq. ft. 11-7/8" w/ 1-1/2" MPT		 4CH-21
4CH-20
4CH-24
4CH-30
Seahorse Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Seascape Spas 30 sq. ft. 11-7/8" w/ 1-1/2" MPT 4CH-30
Sequoia Design 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4625
C-4950
Seven Seas 25 sq. ft. 5" x 13-5/16"
25 sq. ft. 5-11/16" x 10-3/8" w/ closed top
50 sq. ft. 5-11/16" x 10-3/8" w/ closed top		 C-5625
C-5601
C-5300
Signature Spas 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 6-5/8" (2 per set)
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4405
C-4950
Softsider Spas 12 sq. ft. 4-5/8" x 4-5/8" w/ 1.9" i.d.
15 sq. ft. 4-5/8" x 6-5/8" w/ 1.9" i.d.
32 sq. ft. 7" x 8" w/ 1.9" i.d.		 C-4302
C-4303
C-7432
Softub 20 sq. ft. 6-3/4" w/ 1-1/2" MPT
25 sq. ft. 6" x 5-1/2" with 1-1/2" MPT (P/N 90-802)		 4CH-20
6CH-25
Sonoma Spas 10 sq. ft. 4-1/4" x 4"
25 sq. ft. 4-15/16" x 13-3/16"
25 sq. ft. 7" x 9-13/16" w/ gasket
25 sq. ft. 11-7/8" ozone cartridge
40 sq. ft. 17" ozone cartridge
50 sq. ft. 4-15/16" x 13-5/16"
100 sq. ft. 4-15/16" x 26-11/16"		 C-4310
C-4325
C-7626
C-5402
C-5404
C-4950
C-4999
Spa Crest 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Spa Manufacturers Inc. 25 sq. ft. 4-5/8" x 9-3/4" w/ 1.9" i.d. C-4324
Streamline Spas 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
Sunbelt Spas 50 sq. ft. 4-15/16" x 13-5/16"
75 sq. ft. 4-15/16" x 23-5/8"		 C-4950
C-4970
Suncountry Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Sundance Spas

25 sq. ft. 11-7/8" w/ 1-1/2"
MPT (P/N 6540-484)

40 sq. ft. 4-1/2" x 18" w/ 1-1/2"
MPT (P/N 6540-486)

40 sq. ft. 4-5/8" x 16-3/4"
(P/N 6540-495)

65 sq. ft. 8" or 7-1/2" x 14-3/4"
w/ 2-1/16" bottom i.d.
(P/N 6540-480)

65 sq. ft. 8" or 7-1/2" x 14-3/4"
w/ 2-5/8" bottom i.d.
(P/N 6540-481)

4CH-30


use
4CH-35

C-4440


C-7465

 

C-7466
Models after 1993: 120 sq. ft. 8-1/2" x 18-1/4"
(P/N 6540-482)		 C-8320
Suntub:

50 sq. ft. 4-15/16" x 13-5/16"
(P/N 6540-471)

50 sq. ft. 4-15/16" x 14-7/8"
(P/N 6540-497)

 C-4950


C-4305
Sunrise Spas 50 sq. ft. 4-15/16" x 6-5/8" (set of 2)
50 sq. ft. 4-15/16" x 13-5/16"
32 sq. ft. 7" x 8"		 C-4405
C-4950
7CH-32
Sunset Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Superior Spas 10 sq. ft. 4-1/4" x 4"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4310
C-4950
Tiara Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950
Tiger River
(Watkins Mfg.)		 65 sq. ft. 8-1/2" x 10-1/2" C-8465
Thermo Spas
of Connecticut		 10 sq. ft. 4-1/4" x 4"
25 sq. ft. 7" w/ 1-1/2" MPT
25 sq. ft. 4-15/16" x 13-5/16"
30 sq. ft. 4-15/16" x 14-7/8"
4-15/16" x 4-5/8" (2 per set)
4-15/16" x 6-5/8" (2 per set)
45 sq. ft. 6" x 8-1/4"		 C-4310
6CH-26
C-4625
C-4301
C-4401
C-4405
6CH-940
US Spas 25 sq. ft. 4-15/16" x 13-5/16"
50 sq. ft. 4-15/16" x 13-5/16"		 C-4326
C-4950
US Tooling & Spa 10 sq. ft. 4-1/4" x 4" skim filter
50 sq. ft. 4-15/16" x 6-5/8" (set of 2)
50 sq. ft. 4-15/16" x 13-5/16"		 C-4310
C-4405
C-4950
Viking Spas 32 sq. ft. 4-15/16" x 11-7/8" C-4332
Vita Spas
(DM Industries)		 40 sq. ft. 9-3/4" w/ 1-1/2" MPT
50 sq. ft. 14-3/4" w/ 1-1/2" MPT
50 sq. ft. 7" x 19-5/8"
50 sq. ft. 7" x 14-3/4" w/ 1.9" i.d.
50 sq. ft. 8-1/4" w/ slots		 7CH-40
7CH-50
C-7650
C-7449
C-8350
Warm Springs Spas

50 sq. ft. 4-15/16" x 13-5/16"
25 sq. ft. 4-15/16" x 13-5/16"

C-4950
C-4625
White Springs Spas 9-3/4" w/ 1-1/2" MPT 4CH-24
Wind River Spas 50 sq. ft. 4-15/16" x 13-5/16" C-4950

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