Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21
One and seven eights inch threads
Thread profile fine MPT
Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21
One and seven eights inch threads
Thread profile fine MPT

Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21

FC0121
Save $-16.95
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$6.95
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Power Soak Filter Cleaner
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Filter Savers Pre-Filter 6-Pack
Filter Savers 6-Pack
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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.4⅝"

Length:Measured end cap to end cap, excluding any handles, threads, fittings or protrusions. 8"

Top: Handle

Thread:Measured outside diameter. Also called 1½" MPT. 1⅞" Fine

Media:Media area & weight/yard.18 SF-3oz

Cross reference: Unicel 4CH-21 | Pleatco PTL18P4-4 | Filbur FC-0121 | R173372, XLS437, 11901, 20245-238, 40191

Product notes: Always keep spare clean, dry cartridges on hand.
Used in: Atera | California Cooperage | Champion | Galaxy | Saratoga Spas | Vita | and others


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This spa filter receives overwhelmingly positive feedback. Customers said it's a "perfect match" with excellent value and quality. The filter effectively cleans spa water and is easy to maintain. Shoppers appreciate the reasonable pricing and quick delivery. One customer noted ordering process issues with differing billing/shipping addresses.

  • 5 stars: 11 (92%)
  • 4 stars: 1 (8%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Rottenron
Perfect

Perfect match, no issues at all b

R
Rob P.
great filters

I use it to enjoy life to the fullest and just LOVE the HOT TUB

B
Barbara p.
I buy this item every year for the hot tub...

Very satisfied with this product and reasonably priced.

G
Great
Forever customer

Perfect customer service. Great filters

s
snook
I would buy this product again

It was delivered and fir as promised and was a great value.

W
William H.C.
I have used this product before and really like it.

I tried to order online, but because the billing address and shipping address were different, the site wouldn't let me order. So I had to make a phone call. So that took longer. That is the only issue I have is the ordering process.

J
John Q.
Great Product for the price

Quality filters at a great price..... Install them in my spa.. Will be and have place another order of other products from Spa Depot.......

s
sandy
purchase

It was my fault that I didn't read the size of the filter but you have been so great in the return that I have sent back to you.

J
John C.
Good filter for the price.

The filter does it's job cleaning the spa water. It is also easy to clean.

M
Missy
Does the job.

Thanks!

L
LANE J.
I would buy this product again.

Exactly what I ordered and came quickly to the house. Thank you.

T
T.O.
Good

Good product, good price, quick delivery👍🏽

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