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Regency Hot Tub Filters
Regency Spa Filters
These Filters Meet or Exceed Specifications Set Forth By The Spa Manufacturer.

Square Feet
17.5
Outer Diameter
4 15/16"
Length
4 5/8"
Top
2 1/8" Inner DiameterTop example and MAY VARY
Bottom
2 1/8" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4401
Replacement Cartridge Filters for these Pleatco Products
PRB17.5SF
Replacement Cartridge Filters for these Filbur Products
FC2386
FITS Rainbow DSF 35 [17-2606]

Square Feet
40
Outer Diameter
4 5/8"
Length
11 7/8"
Top
2 1/16" Inner DiameterTop example and MAY VARY
Bottom
2 1/16" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4320
Replacement Cartridge Filters for these Pleatco Products
PA20-4
Replacement Cartridge Filters for these Filbur Products
FC1215
FITS Micro Star Clear C-200 [CX200-RE]

Square Feet
35
Outer Diameter
4 15/16"
Length
9 1/4"
Top
2 1/8" Inner DiameterTop example and MAY VARY
Bottom
2 1/8" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4335
Replacement Cartridge Filters for these Pleatco Products
PRB35-IN
Replacement Cartridge Filters for these Filbur Products
FC2385
FITS Rainbow Dynamic 35 [03FIL1300]

Square Feet
50
Outer Diameter
4 3/4"
Length
15 1/2"
Top
Posi Grip
Top example and MAY VARY
Bottom
1 1/2" MPT
Top example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
4CH-50
Replacement Cartridge Filters for these Pleatco Products
PTL50H 4A
Replacement Cartridge Filters for these Filbur Products
FC0151
FITS Advanced / LA Spas