Clarathon Threaded Filter for Master Spas FC0317
Clarathon Threaded Filter for Master Spas FC0317
Clarathon Antimicrobial Threaded Filter for Master Spas FC0317M
two and one quarter inch fine threads
Thread profile fine MPT
Clarathon fc0317
Clarathon fc0317m
Clarathon Threaded Filter for Master Spas FC0317
Clarathon Threaded Filter for Master Spas FC0317
Clarathon Antimicrobial Threaded Filter for Master Spas FC0317M
two and one quarter inch fine threads
Thread profile fine MPT
Clarathon fc0317
Clarathon fc0317m

Clarathon FC-0317 Spa Filter for Master Spas PMA40L-F2M X268365

FC0317
Save $-24.95
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Filter Media Choice: (Select One) Blue Microban® media inhibits growth of smelly bacteria on pleated filter fabric.

Add to Order - SPECIAL

$6.95
Power Soak Filter Cleaner
Power Soak Filter Cleaner
Save $2 (Reg. $8.95)
$7.95
eco-TUB Filter Soak Cleaner 32 oz.
eco-TUB Filter Cleaner
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Select Filter Media Choice
Clarathon® Premium Ultra Hot Tub Filters provide unmatched performance at a great price.

Type: Threaded fitting in filter cap. Screw-In

Diameter:Measured across end cap at widest point.6"

Length:Measured end cap to end cap, excluding any handles, threads, fittings or protrusions. 9¼"

Top: Handle

Thread:Measured outside diameter. Also called 2" MPT. 2¼" Fine

Media:Media area & weight/yard. Blue Microban® inhibits smelly bacteria growth on filter fabric.40 SF-3oz

Cross reference: Pleatco PMA40L-F2M, PMA40L-F2M-M | Filbur FC-0317, FC-0317M | FC9945, FC9945M, PMA-EP2, X268365, 60407, 60407M

Microban® Media Available

Product notes: Longer version 1-piece replacement for 2009+ Master Spas EcoPur® systems. Single cartridge replaces outer + Eco Pur mineral inner filter (X268512 + X268511 PMA-EP2). Use with conventional or mineral sanitizer. Always keep spare clean, dry cartridges on hand. Microban blue media inhibits odor-causing bacterial growth on filter pleats, reducing maintenance. Antimicrobial properties do not protect users against bacteria, viruses, germs, or other disease organisms.
Used in: Master Spas (2014-2019 Legend MPL700, MPL800, MPL900) | and others


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Customers praised these spa filters for excellent filtration performance and compatibility with hot tubs. Reviews highlighted "fast shipping," "reasonable prices," and "perfect fit." One customer noted filters resolved low-flow errors that local alternatives caused. Some felt pricing was slightly high, though most found good value, especially compared to pricier options.

  • 5 stars: 12 (80%)
  • 4 stars: 3 (20%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
S
Steve C.

Will replace the original twilight filter and work just as well. These are my backups

R
Rod S.
Fast ship, quality product.

Always amazed at how quickly SpaDepot gets product to my doorstep.

Filter is higher quality than I could find on Amazon. Exact fit. Thanks!

b
bakes
i would buy this again

I use it in my hot tub. Price is a bit high I fell,but I will see how well the filters work.

L
L t.s.b.
Always a great buy from this company

great price and service. fast shipping.

t
turkey g.
yes

works well with my master pool spa and frog products

T
Tim S.
very good products will buy again

they are great

D
Dave
Products I need at the right price

I know that I could likely find the filters for spa at a local store but I find it more convenient to shop on-line. I've ordered from SpaDepot for the last several years when it is time to change the filters. The prices are reasonable and the shipping timely for my needs.

J
Joseph B.
maybe

need more selection

T
Trout
I would buy again

Good quality fair price fast delivery

J
JWC
New Filters Working Great

I needed new filters for my spa and had troubles with ones I purchased at the local store. I used the on-line chat to confirm what two type filters that I needed. Luckily they had one that would meet both needs. Prior filters gave me low-flo errors, but these have had no problem and filtering wonderfully. They also showed up very quickly, less than a week.

R
Richard R.
Excellent Service

The rep was very knowledgeable and polite. She was able to resolve my filter over the phone and saved me a lot of dough.

D
Dee
I will buy this filter again

Replace the micro-bacterial filters that came with my Master Spa with these filters. These filters actually work compared to the one's the dealer gave me with the tub. Also a pair of these costs $120 less than the micro-bacterial filters that don't even work.

G
GERRY L.
i would buy agin

for a hot tub

C
Cheri
Perfect match

Fast service, reasonable price & perfect fit for our twilight series spa

T
Tom
Nice product

Nice price fast delivery

B
Bryan B.

I’m looking for replacement filters for my hot tub. Model x268566 master spa filter is the OEM version. It’s a female coarse thread on the bottom of the filter.

The tub is new and Master Spa changed their filter design for the 2025 model year.

Do you have any filter options for me?

SpaDepot.com

This filter will work as a single filter replacement for your X268566 & PMA-EP2 setup.

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