Clarathon fc9959 sock filter
Clarathon Sock Filter for Sierra/Southwest Spas
Clarathon fc9959 sock filter
Clarathon Sock Filter for Sierra/Southwest Spas

Clarathon Sock Spa Filter for Sierra/Southwest Spas

FC9959
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Clarathon® Premium Ultra Hot Tub Filters provide unmatched performance at a great price.

Type: Open non-threaded filter cap. Drop-In

Diameter:Measured across end cap at widest point.4⅛"

Length:Measured end cap to end cap, excluding any handles, threads, fittings or protrusions. 14"

Top:Hole inside diameter. 4⅛" Open

Base: Closed

Media:Material sq ft.Disposable

Product notes: Microfiber sock/bag filter. 150 micron Always keep spare clean, dry cartridges on hand.
Used in: Maax Spas | Sierra Spas | Southwest (Bali, Molokai, Bahama, Kauai, Lani, Stereo, Pacific, 2000) | Vita | and others


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This sock-style spa filter is well-built and durable, designed for Sierra/Southwest Spas. Customers said it's a "lifesaver" for hard-to-find replacements and praised the "perfect" fit. Reviews highlight fast shipping, reasonable pricing, and quality construction. The unique sock design is appreciated for its functionality.

  • 5 stars: 7 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
T
Thomas M.
Sock Filter

I’m really greatful for your quick service and product. I came across your sock filter for my southwest spa, after 6 plus hours of searching for a filter. My sis bought a used southwest spa with out the filter or owners manual. So we have no idea of the filter that it takes, and so far no one can tell me. After reading reviews from other people that bought your sock filter I decided after taking measurements to purchase one myself. It has been and is a lifesaver.
Thank you for offering this product and for your speedy delivery.
Thomas McDow

Thomas M. review photo
L
Lynne L.
Great products

Great products and fast shipping!

C
Charles C.
I will be buying these filters again

These are not easy filters to find. They are reasonably priced and shipping was fast !!

H
Hutchdude
different well built

Had never seen a this type of filter before. It's well built and seems durable so far.

N
Nana
Awesome, just what I needed.

I have had a hard time finding these. They fit perfect and they are a fair price.

j
jt
I would buy this filter again

Love the sock design of the filter.

J
J.P.
Glad I found these!

Our local store can't get these anymore. Lucky to find them at spa depot and real good price to boot.

T
Thomas M.

How do these filters attach to my southwest spa?
My sis bought this tub used. It didn’t have a filter with the tub. So no clue how it attaches or dimensions I need. Since southwest spa has long been out of business!

SpaDepot.com

The filter sock simply snaps into your filter trim ring. Give us a call when you have a moment near the spa and we'll be happy to walk you through installation.

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