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Sprite Slim-Line 2 vs AquaBliss SF220

Two cheap inline filters with opposite strengths: one has a certification and a disappointing independent measurement, the other has full disclosure and no verification at all.

By Scooter M.Published
An inline filter body fitted to a shower arm against a tiled wall

Disclosure — some links on this page go to Amazon, and we earn a commission if you buy through them. It costs you nothing extra and it does not change what we recommend or in what order. The full disclosure.

The short answer

Sprite holds an NSF/ANSI 177 certification from IAPMO, publishes 10,000 gallons or 6 months, and was independently measured at 42 percent chlorine reduction. AquaBliss SF220 publishes its full six-media list and no certification, no flow rate and no capacity.

Quick picks

Ranked on what can be verified: a traceable certification first, then media matched to your disinfectant. Tap a row to jump to the full write-up.

#ProductBest forCertificationPrice
1
Sprite Slim-Line 2Certified to NSF/ANSI 177 by IAPMO, and the most instructive product in this set: when WaterFilterGuru measured it independently they got 42% chlorine reduction — a reminder that the certification floor is 50% of a controlled challenge, not a promise about your shower.KDF media with calcium sulfite, branded "Chl…
Certified media, honestly benchmarkedNSF/ANSI 177
2
AquaBliss SF220 Daily EssentialThe cheap inline unit that tells you when not to buy it: AquaBliss states that chloramine customers should choose the SF100 or a whole-house filter instead. For plain free chlorine it publishes a full media list and asks very little.Sand filter, ultra-fine stainless steel mesh…
Free chlorine on a small budgetNone

Every figure in this table links to the page it came from in the write-ups below. Units we claim to have tested: 0.

Top pick

Sprite Slim-Line 2

Certified media, honestly benchmarked

Certified to NSF/ANSI 177 by IAPMO, and the most instructive product in this set: when WaterFilterGuru measured it independently they got 42% chlorine reduction — a reminder that the certification floor is 50% of a controlled challenge, not a promise about your shower.

Published specifications

Filter media
KDF media with calcium sulfite, branded "Chlorgon"Source: WaterFilterGuru, "Sprite Slim-Line 2 Shower Filter: A Data-Driven Review" (retrieved 2026-09-01)
Stated flow rate
1.8 GPM claimed; 1.65 GPM measured independentlyThe measured figure is WaterFilterGuru's, not ours.Source: WaterFilterGuru, "Sprite Slim-Line 2 Shower Filter: A Data-Driven Review" (retrieved 2026-09-01)
Rated cartridge life
10,000 gallons, or 6 monthsSource: WaterFilterGuru, "Sprite Slim-Line 2 Shower Filter: A Data-Driven Review" (retrieved 2026-09-01)
Chloramine
Not publishedNo chloramine performance is published for this unit.
Format
Inline, fits between the arm and any shower headSource: Sprite Slim-Line 2 — listing on Amazon.com (retrieved 2026-09-01)
Housing
PlasticDescribed in the independent review as feeling flimsier than most of the filters tested alongside it.Source: WaterFilterGuru, "Sprite Slim-Line 2 Shower Filter: A Data-Driven Review" (retrieved 2026-09-01)

What it does well

  • NSF/ANSI 177 certification from IAPMO, per the independent review that checked it
  • KDF plus calcium sulfite, a media pairing with a real mechanism behind it
  • 10,000 gallon / 6 month cartridge
  • Low-profile inline body, roughly an inch and a half tall

Where it falls short

  • Independently measured at 42% chlorine reduction, well below the marketing
  • Plastic housing described by that reviewer as flimsier than most
  • Measured flow of 1.65 GPM against a claimed 1.8

What it does not do

  • It does not soften water. Independent measurement found hardness effectively unchanged at 128.19 PPM going in.
  • It publishes no chloramine performance.
  • Its certification does not mean 100% chlorine removal in your shower.

Who it is for

A reader who wants the certification and the caveat together, and who values a low-profile inline unit that does not change their shower head.

Skip it if

You want the highest measured chlorine reduction available. On the one independent measurement we could find, this was not it.

Check price on Amazon

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The full Sprite Slim-Line 2 write-up

Pick 2

AquaBliss SF220 Daily Essential

Free chlorine on a small budget

The cheap inline unit that tells you when not to buy it: AquaBliss states that chloramine customers should choose the SF100 or a whole-house filter instead. For plain free chlorine it publishes a full media list and asks very little.

Published specifications

Filter media
Sand filter, ultra-fine stainless steel mesh, micro-porous PP cotton, calcium sulfite, redox media, activated carbonSource: AquaBliss — SF220 Daily Essential shower filter (retrieved 2026-09-01)
Stated flow rate
Not publishedAquaBliss publishes no flow rate for the SF220; it states only that the design maintains pressure.
Rated cartridge life
Every 3-6 months, depending on water qualityNo gallon rating is published.Source: AquaBliss — SF220 Daily Essential shower filter (retrieved 2026-09-01)
Chloramine
Not suitable — the maker directs chloramine customers to the SF100 or a whole-house filterSource: AquaBliss — SF220 Daily Essential shower filter (retrieved 2026-09-01)
Format
Inline, 3.31 x 3.31 x 4.65 in, standard half-inch connectionSource: AquaBliss — SF220 Daily Essential shower filter (retrieved 2026-09-01)
Housing
Chrome finish, 5.6 ozSource: AquaBliss — SF220 Daily Essential shower filter (retrieved 2026-09-01)

What it does well

  • Full media list published, down to the PP cotton and stainless mesh stages
  • The maker states its own limit on chloramine instead of hiding it
  • Compact inline body, about 3.3 by 3.3 by 4.7 inches
  • Standard half-inch fitting works with fixed, rain and handheld heads

Where it falls short

  • No published NSF/ANSI certification
  • No published flow rate or gallon capacity
  • Explicitly not the right choice on chloraminated water

What it does not do

  • It does not soften water, and no hardness claim is made for it.
  • It is designed to reduce chlorine only — AquaBliss directs chloramine customers elsewhere.
  • It carries no published NSF/ANSI certification.

Who it is for

A reader on free-chlorine municipal water who wants the media named and the price low, and who does not need a certification mark.

Skip it if

Your utility uses chloramine. The maker says so itself.

Check price on Amazon

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The full AquaBliss SF220 Daily Essential write-up

Side by side

Sprite Slim-Line 2 vs AquaBliss SF220
Sprite Slim-Line 2AquaBliss SF220
CertificationNSF/ANSI 177 from IAPMONone
MediaKDF and calcium sulfite ("Chlorgon")Six named: sand, mesh, PP cotton, calcium sulfite, redox media, carbon
Flow rate1.8 GPM claimed, 1.65 measuredNot published
Cartridge capacity10,000 gallons / 6 months3 to 6 months, no gallon rating
Independent measurement42% chlorine reductionNone
ChloramineNot publishedStated as unsuitable — maker points to the SF100
Body size~1.5 in profile, the smallest here3.31 x 3.31 x 4.65 in
HousingPlastic, described as flimsier than mostChrome finish, 5.6 oz

Both are honest, in different ways

This comparison is a pleasure to write because neither product is pretending. Sprite has a real certification from a named body and does not claim to exceed anything. AquaBliss has no certification, does not claim one, publishes its entire media list, and tells chloramine customers to buy a different model.

That is two quite different approaches to earning trust, and both are legitimate. What neither does is the thing the premium end of this category does routinely, which is claim to surpass a standard it does not hold.

The 42 percent, again

It has to be addressed because it looks damning and is not. NSF/ANSI 177 requires a 50 percent reduction of a controlled 2.0 mg/L free chlorine challenge in a lab. WaterFilterGuru measured 2.70 PPM going in and 1.54 out, on their own supply — a higher influent, different conditions, an unknown cartridge age. Both numbers are real answers to different questions. The full explanation.

It does mean that if maximum chlorine removal is your goal, neither of these is the answer and the Weddell Duo is. What Sprite offers is a verified floor at a very low price in the smallest body available.

The verdict

  • Buy Sprite if you want a traceable certification, the smallest possible body, and a published gallon rating you can cost out.
  • Buy AquaBliss if you want the full media list, a slightly more substantial housing, and a maker that names its own product's limits.
  • Buy neither if you are on chloramine — AquaBliss says so about the SF220 itself, and Sprite publishes no data. The SF100 is the same maker's answer.
  • Buy neither if maximum measured reduction is the goal.

Questions people actually ask

+ Is Sprite better than AquaBliss?

Sprite has a certification and a published gallon rating; AquaBliss has full media disclosure and states its own chloramine limit. They are strong in opposite ways.

+ Why did the certified Sprite filter measure only 42 percent?

The certification tests a controlled 2.0 mg/L challenge in a lab against a 50 percent floor. The independent test used a higher influent on a different supply. Both are real.

+ Which is smaller?

Sprite, substantially — the Slim-Line body is around an inch and a half against over four and a half inches for the AquaBliss.

+ Which works on chloramine?

Neither. AquaBliss says so directly about the SF220 and points chloramine buyers to the SF100.

Sources

Everything on this page traces to one of these. Where a source is brand-owned we say so, because a filter maker explaining filter chemistry has an interest and you are entitled to weigh it.