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Spa Defender

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Cartridge Clean

Spa Instant Cartridge Clean

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Aqua Finesse

Aqua Finesse AquaFinesse

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Calcium Booster

Leisure Time Calcium Booster

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Spa Filter Cartridges

Spa Filter Cartridges Master, Millennium, Moonwater, Morgan, Mountain Meadows, Nemco, Mountain Mist Spa, Mountain Spring Spa, Mountain Stream Spa, Nordic Hot Tubs, Pacific Marquis, Orion, PDC, Pac Fab, Pacific, Pageant, Paradise Spa Filter Cartridges

How do I determine outside diameter, filter length, inside diameter, square feet and end cap configuration of my spa filter cartridge? See the "Spa Filter Selection" guide and the "How To Compute Area (Square Footage)" of a spa filter cartridge.

Part #	Manufacturer	Out. Diam.	Length	Measure top	Measure bottom	Sq. Ft.	Price	Order
4CH-20	Master Spas Spa Filter Cartridge	4-5/8	6-3/4	Cone	1-1/2 MPT	20	$33.80
C-4324	Master Spas	4-5/8	9-3/4	Cone	1-15/16	25	$39.21
6CH-45	Master Spas	6	12-3/8	Handle	1-1/2 MPT	45	$59.03
8CH-66	Master Spas	8	9-1/4	Handle	2 MPT	60	$94.97
C-4339	Millennium Spas	4-15/16	11-1/4	2-1/8	2-1/8	40	$43.42
C-4950	Millennium Spas	4-15/16	13-15/16	2-1/8	2-1/8	50	$44.82
C-4326	Moonwater Spas	4-15/16	13-15/16	2-1/8	2-1/8	25	$28.30
C-4950	Moonwater Spas Spa Filter Cartridge	4-15/16	13-15/16	2-1/8	2-1/8	50	$44.82
C-4637	Morgan Spas	4-15/16	13-15/16	2-1/8	2-1/8	37	$50.51
C-4950	Morgan Spas	4-15/16	13-15/16	2-1/8	2-1/8	50	$44.82
C-5635	Morgan Spas	5-3/16	14-3/4	1-1/16	1-5/8	27	$46.51
4CH-24	Mountain Meadows	4-5/8	9-3/4	Cone	1-1/2 MPT	25	$37.72
C-4429	Nemco	4-15/16	10-3/8	2-1/8	2-1/8	30	$41.83
C-4335	Nemco	4-15/16	9-1/4	2-1/8	2-1/8	35	$40.07
4CH-24	Nemco	4-5/8	9-3/4	Cone	1-1/2 MPT	25	$37.72
4CH-50	Nemco Spa Filter Cartridge	4-5/8	14-3/4	Cone	1-1/2 MPT	50	$49.92
C-4403	Nemco	4-5/8	11-5/8	Cone	1-3/8	20	$37.23
C-5405	Nemco	5-7/8	15-5/8	Cone	1-3/8	50	$63.71
4CH-24	Mountain Mist Spa	4-5/8	9-3/4	Cone	1-1/2 MPT	25	$37.72
4CH-24	Mountain Spring Spa	4-5/8	9-3/4	Cone	1-1/2 MPT	25	$37.72
4CH-24	Mountain Stream Spa	4-5/8	9-3/4	Cone	1-1/2 MPT	25	$37.72
C-4301	Nordic Hot Tubs	4-15/16	14-7/8	2-1/8	2-1/8	28	$34.36
C-4326	Nordic Hot Tubs Spa Filter Cartridge	4-15/16	13-5/16	2-1/8	2-1/8	25	$28.30
C-5626	Pacific Marquis	5-3/16	11-7/8	1-1/16	1-5/8	25	$43.89
C-5637	Pacific Marquis	5-3/16	19-5/8	1-1/16	1-5/8	40	$62.55
C-5346	Pacific Marquis	5-3/16	14-1/8	Closed	1-5/8	50	$53.59
C-5434	Pacific Marquis	5-3/16	19-5/8	Closed	1-5/8	40	$58.03
C-5423	Pacific Marquis Spa Filter Cartridge	5-7/8	15-5/8	Closed	1-3/8	50	$39.67
C-4950	Orion Spas	4-15/16	13-5/16	2-1/8	2-1/8	50	$44.82
C-4625	Orion Spas	4-5/8	13-5/16	2-1/16	2-1/16	25	$37.37
C-4625	PDC Spas	4-15/16	13-15/16	2-1/8	2-1/8	25	$37.37
C-4332	PDC Spas	4-15/16	11-7/8	2-1/8	2-1/8	25	$33.14
C-7626	PDC Spas	7	9-13/16	3	3	25	$46.26
C-7656	PDC Spas Spa Filter Cartridge	7	19-5/8	3	3	50	$77.58
C-5623	Pac Fab	5-5/16	13-9/16	2	2	23	$35.58
C-7678	Pac Fab	7-7/8	11-1/8	3-1/16	3-1/16	50	$74.31
6CH-47	Pacific Spas	6	9-1/8	Handle	1-1/2 MPT	47	$48.57
C-4449	Pageant Spas	4-15/16	17-3/4	2-1/8	2-1/8	45	$53.13
C-4950	Pageant Spas	4-15/16	13-15/16	2-1/8	2-1/8	50	$44.82
C-4305	Pageant Spas	4-15/16	14-7/8	2-1/8	2-1/8	50	$50.47
4CH-21	Pageant Spas Spa Filter Cartridge	4-5/8	8	Cone	1-1/2 MPT	19	$37.88
4CH-21	Pageant Spas	4-5/8	8	Closed	1-1/2 MPT	19	$37.88
C-6602	Pageant Spas	6	16-1/8	Handle	1-7/8 w/slots	60	$77.19
C-4950	Paradise Spas	4-15/16	13-5/16	2-1/8	2-1/8	50	$44.82

EZ River Hot Tubs

Spa Filter Cartridges