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Porens psca028, 24-piece set

A 24-piece set with a pump cleaning brush for 95 oz / 2.8 L fountains, at $1.33 per filter.

Porens twenty-four piece cat fountain filter and sponge set with brush

Porens psca028, 24-piece set

A 24-piece set with a pump cleaning brush for 95 oz / 2.8 L fountains, at $1.33 per filter.

Filters
12
Sponges
12
Brush
1, for the pump
Price per filter
$1.33
Filter size
3.9 × 3.9 × 0.4 in
Stated fitment
95 oz / 2.8 L
Layers
Cotton, activated carbon, ion exchange resin
Preparation
Soak 5 minutes before use
Change interval
Every 2 to 4 weeks
Sponge size
Not published
Amazon reference
B0C4Q12LH7
EAN
0747165638128
  • Includes a pump brush, which reaches the part of a fountain a filter never does
  • Publishes the filter dimension, so it can be measured rather than guessed
  • The most expensive of the three identically sized generic filters at $1.33

Best for: A single 2.8 L fountain, with the brush its pump has never had

Check price on Amazon

Specifications

Filters
12
Sponges
12
Brush
1, for the pump
Price per filter
$1.33
Filter size
3.9 × 3.9 × 0.4 in
Stated fitment
95 oz / 2.8 L
Layers
Cotton, activated carbon, ion exchange resin
Preparation
Soak 5 minutes before use
Change interval
Every 2 to 4 weeks
Sponge size
Not published
Amazon reference
B0C4Q12LH7
EAN
0747165638128

What you are getting

Twelve carbon filters, twelve sponges and a pump cleaning brush — 24 pieces for $15.95, or $1.33 a filter.

The third brand selling the same filter

3.9 × 3.9 × 0.4 inch. VANVE publishes that figure. OPISICEN publishes that figure. This publishes that figure. Three brands, one generic part for the 95 oz / 2.8 L fountain, and the only difference between them that the pages support is price and what else is in the box.

Here it is $1.33 a filter — the most expensive of the three — with one brush.

It narrows its own compatibility

Where VANVE and OPISICEN list three capacities, this names one: 95 oz / 2.8 L. Same filter, narrower claim. That is a vendor being careful rather than a different product, but it is the claim on the page, and the page is what can be held to.

The brush is aimed at the right place

“A specialized pump cleaning brush to remove hidden debris.” The pump channel is where flow is actually lost — a fountain that has slowed usually has a furred impeller housing, not a spent filter. A brush addresses that; a carbon pad cannot.

Soak five minutes, not two

This listing asks for a five-minute soak; VANVE and Cirfifth ask for two. Both numbers are on the same kind of carbon pad, which tells you how firm either figure is.

What is not published

No sponge dimensions — unusually, the filter is measured and the sponge is not — no carbon weight, and no flow rate.

Availability

Read on the day this page was built: $16 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-06. The live price is at the top of the page.

The questions owners ask

Is this the same filter as the VANVE and OPISICEN sets?

On the published dimensions, yes: all three state 3.9 × 3.9 × 0.4 inch. Three brands, one generic part. The prices differ — $1.06, $1.25 and $1.33 a filter — and so does what comes alongside: nothing, two brushes, one brush. Nothing on any of the three pages distinguishes the carbon itself, because none of them publishes a carbon weight.

Two minutes or five?

This listing says soak five minutes; VANVE and Cirfifth say two. The purpose is the same — wetting the carbon and rinsing out the dust that would otherwise cloud the bowl — and the spread between the figures is a fair indication of how precise either is. Whichever number is on your box, the rinse afterwards matters more than the soak.

Why does a brush come with filters?

Because the filter is not what usually slows a fountain. Flow is lost in the pump housing, where a film builds on the impeller and in the channel behind it — somewhere no filter reaches and a tap rinse does not either. A narrow brush is the tool for it, and three sets on this shelf now include one.

Products this fits

All fountain filters