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At Home Hot Tub Filters
 These Filters Meet or Exceed Specifications Set Forth By The Spa Manufacturer.
 
Square Feet
Outer Diameter
Length
25
4 5/8"
11 7/8"
Shopping Options
Top
Bottom
H Handle
1 1/2" MPT
Same as:
Unicel - 4CH-30
Filbur- FC0141
Spa Filter
Spa Filter
Item# PTL25H 4A    Model # 1561.14
Plunger Loaded Filter   1 1/2" Thrd MPT  Adptr (Pipe Thrd)
Note: Handle Style Will Vary
 
Square Feet
Outer Diameter
Length
25
4 5/8"
12"
Shopping Options
Top
Bottom
Posi Grip
1 1/4" SAE
Same as:
Unicel - 4CH-950
 Filbur- FC0173
Spa Filter
Spa Filter
Item# PDO-UF25 P2L    Model # 1561-04
 Top Load Filter    1 1/4" Lock in Thrd SAE Adptr  (Wide Thrd)
Note: Handle Style Will Vary
 
Square Feet
Outer Diameter
Length
25
5 1/2"
11 7/8"
Shopping Options
Top
Bottom
1 15/16" Open w/ Holes
2 7/8" Inner Dia.
Same as:
Unicel - C-5402
Filbur- FC3096
Spa Filter
Spa Filter
Item# PDO25    Model # 1561-11 
Ozone Filter   Top = Open w/ 12 Concentric Holes
 
Square Feet
Outer Diameter
Length
40
4 5/8"
15"
Shopping Options
Top
Bottom
Posi Grip
1 1/4" SAE
Same as:
Unicel - 4CH-940
 Filbur- FC0177
Spa Filter
Spa Filter
Item# PDO-UF40 P2L    Model # 1561-13
Top Loaded Filter    1 1/4" Lock In Thrd SAE Adptr (Wide Thrd)
Note: Handle Style Will Vary
 
Square Feet
Outer Diameter
Length
40
4 15/16"
11 5/8"
Shopping Options
Top
Bottom
2 1/8" Open
2 1/8" Open
Same as:
Unicel - C-4340
Filbur- FC3081
Spa Filter
Spa Filter
Item# PMT40    Model # 1561-03
In-Line Filter
 
Square Feet
Outer Diameter
Length
40
5 1/2"
17"
Shopping Options
Top
Bottom
1 15/16" Open w/ Holes
2 7/8" Inner Dia.
Same as:
Unicel - C-5404
Filbur- FC3097
Spa Filter
Spa Filter
Item# PDO40    Model # 1561-09
Ozone Filter    Top = Open w/ 12 Concentric Holes   
 
Square Feet
Outer Diameter
Length
50
10 1/16"
8 9/16"
Shopping Options
Top
Bottom
5 13/16" Rail Reinforced
6 1/16" Rail Reinforced
Same as:
Unicel - C-9405
Filbur- FC0684
Spa Filter
Spa Filter
Item# PAP50-4    Model # 1561-26
No Center Core    Used in 16sf Swim Spas
 
Square Feet
Outer Diameter
Length
50
4 3/4"
14 1/2"
Shopping Options
Top
Bottom
Posi Grip
1 1/2" MPT
Same as:
Unicel - 4CH-50
Filbur- FC0151
Spa Filter
Spa Filter
Item# PTL50-H 4A    Model # 1561-05
Plunger Loaded Filter    1 1/2" Thrd MPT  Adptr (Pipe Thrd)
Note: Handel Style Will Vary   
 
Square Feet
Outer Diameter
Length
55
7"
10 1/2"
Shopping Options
Top
Bottom
Posi Grip
2" MPT
Same as:
Unicel - 7CH-552
Filbur- FC0465
Spa Filter
Spa Filter
Item# PTL55XW 2A    Model # 1561-10
Top Loaded Filter    2" Lock in Thrd MPT Adptr (Pipe Thrd)
Note: Handle Style Will Vary
 
Square Feet
Outer Diameter
Length
65
4 5/8"
19 5/8"
Shopping Options
Top
Bottom
Posi Grip
1 1/2" MPT
Same as:
Unicel - 4CH-65
 Filbur- FC0171
Spa Filter
Spa Filter
Item# PTL65H 4A
Plunger Loaded Filter - Top Load     1 1/2" Lock in Thrd MPT Adptr (Pipe Thrd) 
Note: Handle Style Will Vary  
 
Square Feet
Outer Diameter
Length
75
7"
10 1/2"
Shopping Options
Top
Bottom
Posi Grip
1 1/2" SAE
Same as:
Unicel - 7CH-975
 Filbur- FC0475
Spa Filter
Spa Filter
Item# PDO75 P3L    Model # 1561-2
Top Load Filter    1 1/2" Lock In Thrd SAE Adptr (Wide Thrd)  
Note: Handle Style Will Vary 
 
Square Feet
Outer Diameter
Length
75
7 1/8"
10 1/2"
Shopping Options
Top
Bottom
Closed w/ Stand Offs
2" Open w/ Twist Lock
Same as:
Unicel - C-7367
 Filbur- FC3059
Spa Filter
Spa Filter
Item# PDO75-2000    Model # 1561-00    Models After 2000
Top Load Filter    Bottom=Twist Lock
Note: Handle Style Will Vary
 
Square Feet
Outer Diameter
Length
75
7"
14 3/4"
Shopping Options
Top
Bottom
Posi Grip
2" MPT
Same as:
Unicel - 7CH-752
Filbur- FC0470
Spa Filter
Spa Filter
Item# PTL75XW 2A    Model # 1561-02
Top Load Filter     2" Lock in Thrd MPT Adptr (Pipe Thrd) 
Note: Handle Style Will Vary 

 

 

 
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