ShowerPro Range.
Tested. Proven. Published.
Diamond and Rain share the same KDF-55 + Calcium Sulfite filtration core. Rain adds a 5th stage — Swedish Mineral Rock™ — that puts Ca, Mg, and K back into the water. Both independently tested against 70+ contaminants by three accredited laboratories to NSF/ANSI 177 standard. These are the results — every number, every lab, nothing hidden.
The reason your skin feels tight after a shower.
Chlorine keeps your water safe in the pipes — but it doesn't belong on your skin or in the steam you breathe. Hot water vaporises chlorine. It strips natural oils, irritates eczema, and bleaches colour-treated hair. ShowerPro removes 90% of free chlorine and chloramine before water touches you.
Chlorine + chloramine removed
Tested to NSF/ANSI 177 (Shower Filtration — Aesthetic Effects) by iTabe and AQA. Stage 1 KDF-55 + Stage 2 Calcium Sulfite (CaSO₃) target chlorine specifically. CaSO₃ neutralises 90% of chlorine in 0.8 seconds of contact — fast enough to keep up with full shower flow.
Tested to NSF/ANSI 177 by iTabe + AQA. CaSO₃ neutralises chlorine in 0.8s.
What we tested — and removed
Free Chlorine
The main disinfectant in Australian mains water
Chloramine
Secondary disinfectant, used in Sydney + Melbourne
Chlorine taste & odour
What you smell when you step into the shower
Clack KDF-55 long-run data
313,000L test still removing 94% chlorine
What you'll notice
Pool smell in the bathroom — gone
Hot water + chlorine = chloroform vapour. Filter and the steam is just steam.
After-shower itch — gone
Chlorine strips skin oils. Take it out, your moisturiser starts working.
Softer hair within a week
Colour-treated hair holds its tone. Frizz drops. Bleached hair stops feeling like straw.
Why chlorine matters more in the shower than the tap.
You drink ~2 litres of water a day. You shower in 40+ litres — and 100% of it touches skin and lungs. Heat opens pores. Steam carries chlorine deep into the respiratory tract. Per litre, chlorine exposure in the shower is comparable to drinking the same water.
Stage 1 of every ShowerPro filter is KDF-55, a copper-zinc media originally engineered by Clack Corporation in Wisconsin. KDF is the only filtration technology independently proven for hot, high-pressure water — exactly the conditions of a shower. Stage 2 is Calcium Sulfite, which neutralises whatever KDF didn't catch.
The difference is fast. One week and your hair feels different. Two weeks and the white crust on your shower head starts disappearing.
Per shower
Volume of water on skin per use
Inhaled as vapour
Of total chlorine exposure per shower
CaSO₃ contact time
To neutralise 90% of chlorine
KDF endurance
Still removing 94% chlorine in Clack lab test
The chemicals chlorine creates on the way to your shower.
When chlorine reacts with organic matter in the pipes, it produces Trihalomethanes (THMs) and other volatile organic compounds. Hot showers turn these into vapour you inhale. ShowerPro removes 95%+ of by-products — tested across 32 known VOCs.
By-products removed
Total Trihalomethanes and Total Trichloroethylene measured. Testing covers over 100 substances in this class, including 32 known chlorine by-products (VOCs) such as THMs identified as potentially carcinogenic by the IARC.
Tested across 32 VOCs including THMs. iTabe + AQA, NSF/ANSI 177.
What we tested — and removed
Total Trihalomethanes
Including chloroform, bromoform, BDCM, DBCM
Total Trichloroethylene
Industrial solvent + chlorination by-product
32 Volatile Organic Compounds
Identified by EPA + CDC as priority contaminants
Organoleptics (taste/colour/odour)
The composite sensory impact of chlorine + by-products
Why shower vapour matters more than tap water.
THMs and other VOCs are volatile — they evaporate easily at room temperature, and even faster in steam. The CDC estimates that for showers, dermal absorption + inhalation can deliver 2–10× the dose you'd get from drinking the same water.
Long-term THM exposure has been associated with elevated bladder cancer risk in epidemiological studies. The IARC classifies several chlorination by-products as Group 2B (possibly carcinogenic to humans).
This isn't theoretical. Australian mains water averages 30–80 µg/L of THMs — within drinking-water guidelines, but a measurable inhalation dose every shower. ShowerPro removes the bulk of it before the steam rises.
Shower dose
Vs drinking the same water (CDC)
µg/L THMs
Typical Australian mains water
IARC class
Possibly carcinogenic to humans
After ShowerPro
VOCs removed before vapour forms
What old pipes leach into your water.
Mains water leaves the treatment plant clean. But it travels through kilometres of pipe — some over a century old in inner Sydney and Melbourne. Lead solder, brass fittings, galvanised iron, zinc plating all leach into the water that reaches your shower. ShowerPro removes 80%+ of heavy metals via redox reaction in Stage 1 KDF-55.
Heavy metals removed
KDF-55 is a high-purity brass media — a copper anode and zinc cathode that uses electrochemical redox to bind dissolved metals as they pass through. Tested per NSF/ANSI 177 with detection across lead, zinc, manganese, barium, and other heavy metals from pipe corrosion.
KDF-55 copper-zinc redox media binds metals as water passes through.
What we tested — and removed
Lead
From pre-1980s solder + brass fittings
Zinc
From galvanised pipe corrosion
Manganese
Causes brown staining + bitter taste
Barium
From natural mineral deposits + industrial runoff
Why KDF-55 catches what carbon misses.
Plain activated carbon barely touches dissolved metals. KDF-55 works by a completely different mechanism — redox. Copper and zinc atoms in the media exchange electrons with dissolved metal ions, binding them to the surface of the media instead of letting them pass through.
The same KDF-55 process also kills bacteria that can grow inside damp filter media — which is why ShowerPro doesn't need refrigeration or anti-microbial treatment between showers.
Lead is the one to watch. Any pre-1980s plumbing (including most Sydney and Melbourne inner-city homes) can contain lead solder. There's no safe level of lead exposure. ShowerPro is the simplest way to reduce dermal exposure in older properties.
Lead solder cutoff
Plumbing pre-1989 likely contains lead
KDF-55 media
Brass alloy, redox-active
Metal capture
Ion exchange, not just adsorption
Metals tested
Pb, Zn, Mn, Ba + others
Agricultural chemicals — bound by activated carbon.
Australian catchments sit downstream of farmland. Treatment plants remove most pesticide and herbicide residue, but trace levels make it through. ShowerPro's activated carbon block targets the exact molecular shapes EPA + CDC have flagged — 14 pesticides and 12 herbicides, including 2,4-D and Atrazine.
Pesticides + herbicides removed
Testing based on total pesticides + total herbicides, validated by activated carbon adsorption research from EPA and CDC publicly available data. Carbon's high surface area binds organic compounds — including most agricultural residues — by physical adsorption.
14 pesticides + 12 herbicides validated against EPA/CDC research.
Tested compound highlights
2,4-D (herbicide)
Most-used herbicide in Australian agriculture
Atrazine
Common pre-emergent herbicide
Chlordane (pesticide)
Persistent organochlorine, banned in AU since 1995
Heptachlor + Lindane
Legacy contaminants, still detected in older catchments
Why carbon catches what reverse osmosis sometimes misses.
Many pesticide and herbicide molecules are too small to be filtered by size alone — they slip through micropore membranes. But they're highly attracted to activated carbon's enormous internal surface area (over 1,000 m² per gram). The molecules stick.
ShowerPro's carbon is engineered for shower flow rates — high contact area, low pressure drop. Combined with KDF-55 upstream, the cartridge handles both inorganic threats (chlorine, metals) and organic threats (pesticides, herbicides, VOCs).
The full list of tested compounds is published on the website. Reduction is 95% or more across all 26 compounds verified.
m² per gram
Activated carbon surface area
Compounds tested
14 pesticides + 12 herbicides
Reference data
Publicly available carbon adsorption research
Removal
Across all 26 tested compounds
80% less limescale — without softening your water.
The shower head, the glass, the tiles — the white crust that takes 20 minutes a week to scrub off is calcium carbonate crystallising as the water dries. ShowerPro's Stage 4 limescale inhibitor doesn't remove minerals (it can't — they're too small for carbon). It interrupts crystallisation, so scale doesn't form in the first place.
Limescale reduction
Tested in-house with hard water (mineral-rich influent). Stage 4 of the cartridge contains a proprietary scale inhibitor that prevents crystallisation on glass, tile, and chrome. Note: this gives the perception of softer water — it does NOT reduce water hardness or TDS.
Stage 4 inhibitor prevents crystallisation on glass + tile. Doesn't reduce water hardness.
Where you'll notice it
Why this isn't a water softener — and why that's fine.
True water softeners use ion exchange to swap calcium and magnesium for sodium. They're effective, but they make your water salty, they need refilling, they cost thousands, and they require plumbing changes. They also strip healthy minerals.
ShowerPro takes a different approach: leave the minerals in the water but prevent them from sticking to surfaces. The proprietary Stage 4 inhibitor chemically interrupts the crystallisation that turns dissolved calcium into solid scale. The water still has the same hardness reading — it just doesn't leave a deposit.
You'll notice within two weeks: the white crust on your shower head fades, glass stays clearer longer, your existing soap suds more. The scrubbing time per shower drops by half.
Every contaminant. Every number.
Data from independent testing by iTabe and AQA (Spain), with KDF-55 endurance reference data from Clack Corporation (Wisconsin, USA). Tested to NSF/ANSI 177 Shower Filtration Systems — Aesthetic Effects.
| Contaminant | Removal rate | Why it matters | Category |
|---|---|---|---|
| Chlorine & Chloramine | |||
Free Chlorine |
90%+ |
Strips skin oils, irritates eczema, fades hair colour | Chemical |
Chloramine |
90%+ |
Secondary disinfectant — used in Sydney + Melbourne mains | Chemical |
Organoleptics (taste, colour, odour) |
95%+ |
The pool smell when you step into the shower | Aesthetic |
| Chlorine By-products | |||
Total Trihalomethanes |
95%+ |
Includes chloroform, bromoform, BDCM, DBCM. IARC 2B. | By-product |
Total Trichloroethylene |
95%+ |
Industrial solvent + chlorination by-product | By-product |
32 Volatile Organic Compounds |
95%+ |
EPA/CDC priority VOCs vaporised by hot water | By-product |
| Heavy Metals | |||
Lead |
80%+ |
From pre-1989 solder + brass fittings | |
Zinc |
80%+ |
Galvanised pipe corrosion | |
Manganese |
80%+ |
Brown staining + bitter taste | |
Barium |
80%+ |
Natural mineral deposits + industrial runoff | |
| Pesticides & Herbicides | |||
14 Pesticides |
95%+ |
Includes Chlordane, Heptachlor, Lindane | Agricultural |
12 Herbicides |
95%+ |
Includes 2,4-D and Atrazine | Agricultural |
| Physical & Mineral | |||
Limescale formation |
80%+ |
Reduces buildup on glass + shower head (note: doesn't reduce water hardness or TDS) | Mineral |
Turbidity |
90%+ |
Suspended particulates that reduce water clarity | Physical |
Total Suspended Solids |
90%+ |
Dry-weight of undissolved particulates after filtration | Physical |
| Biological (side benefit, not certified) | |||
Legionella pneumophila* |
90%+* |
*ShowerPro is designed for microbiologically safe Australian mains water and is NOT certified for bacteria removal. | Biological |
Three independent labs
Testing by iTabe and AQA (Spain) under NSF/ANSI 177 protocols, plus KDF-55 endurance reference data from Clack Corporation (Wisconsin, USA). Independent, peer-reviewed methods.
NSF/ANSI 177 Compliant
The only shower-specific NSF standard. Tests for chlorine reduction, taste & odour, and aesthetic effects of shower filtration. ShowerPro meets or exceeds the standard.
Transparent results
The full lab document — every test, every result, every certification — is downloadable above. If a shower filter brand won't publish their numbers, ask why.
4-stage filtration. Optimised for hot, high-pressure water.
Most filtration tech is designed for cold drinking water at low pressure. Shower water is the opposite — hot, fast, under pressure. ShowerPro Diamond uses a 4-stage cartridge. ShowerPro Rain adds a 5th — Swedish Mineral Rock™ — that puts calcium, magnesium and potassium back into the water after filtration. Both engineered for shower conditions — the only independently proven technology that performs at full shower flow without dropping pressure.
KDF-55 — Copper/Zinc Redox
High-purity brass media. The copper anode + zinc cathode use electrochemical redox to bind chlorine and heavy metals. The only filtration tech independently proven for hot, high-pressure water. Lab-tested by Clack Corporation to 313,000L still removing 94% chlorine.
Calcium Sulfite (CaSO₃) — Chlorine Neutralisation
Shower filter balls that chemically neutralise 90% of free chlorine in 0.8 seconds of contact time. Fast enough to keep up with full shower flow. Works in combination with KDF-55 upstream for redundant chlorine removal.
Mineral Balls (Crystal Quartz)
Negative-ion mineralisation. Claimed to provide smoother skin, reduce oil secretion, and increase cell viability. Note: these benefits are not independently verified. We include the stage because customers report a noticeable difference; we won't claim science we haven't proven.
Limescale Inhibitor
Proprietary formulation that interrupts calcium carbonate crystallisation. Reduces scale formation on glass, tile, and chrome by 80%. Note: reduces buildup, does not change water hardness or TDS.
Swedish Mineral Rock™ (SMR)
Adds essential minerals — calcium, magnesium, and potassium — back into the filtered water. Supports skin barrier function and gives water a "spring-water" softness some customers describe.
ShowerPro Rain onlyBuilt to standard. Independently certified.
Beyond NSF/ANSI 177 lab testing, ShowerPro meets international safety, material, and environmental standards. HS Code 8421210090 · Tapp Water SL, Barcelona, Spain.
NSF/ANSI 177
Shower Filtration Systems — Aesthetic Effects (the shower-specific NSF standard)
FDA Food Grade
US Food Grade FDA + EU Framework Reg. 1935/2004/EC + 2023/2006/EC GMP
EN 1208:2005
European standard for chemicals used to treat water for human consumption
RoHS2 Compliant (EU)
Below Maximum Concentration Values per EU directive 2011/65/EU
REACH Compliant (EU)
No chemicals on the REACH SVHC restricted list
BPA Free
Verified to contain zero BPA in housing and cartridge materials
Cruelty Free
No animal testing anywhere in product or supply chain
Lead Free
Zero lead content in any component
iTabe Certified
Independent Spanish lab — primary testing partner for NSF/ANSI 177 protocols
AQA Certified
Second independent Spanish lab — corroborating filtration verification
Clack Corporation
KDF-55 endurance reference data (Wisconsin, USA) — 313,000L at 94% chlorine
Eco-friendly
Manufacturing, supply chain, and end-of-life meeting high environmental standards
What "tested" actually means.
Most shower filter brands claim their products are tested. Here's what that typically looks like — versus what ShowerPro actually does.
| ShowerPro | Most brands | |
|---|---|---|
| Independent lab testingThird-party verification (iTabe + AQA + Clack) | ✓ | ✗ |
| Lab reports publishedFull report available for download — every number | ✓ | ✗ |
| Tested to NSF/ANSI 177The shower-specific NSF standard for filtration | ✓ | ~ |
| 70+ contaminants testedChlorine, by-products, heavy metals, pesticides, herbicides | ✓ | ~ |
| Specific removal rates publishedExact percentages, not vague claims | ✓ | ✗ |
| KDF-55 endurance verified313,000L test at 94% chlorine (Clack Corporation) | ✓ | ✗ |
| Honest about limitationsWe say "not certified for bacteria" instead of claiming it | ✓ | ✗ |
| Designed for hot, high-pressure waterKDF-55 — the only proven technology for shower conditions | ✓ | ~ |
Choose your ShowerPro.
90% chlorine. 80% heavy metals. 80% less limescale. Tested. Certified. Backed by the Forever Fresh Guarantee.
Twists onto your existing shower arm in 60 seconds. 90% chlorine, 80% heavy metals, 80% limescale — lab-tested to NSF/ANSI 177.
Filter the water you drink, too. EcoPro Compact twists onto your kitchen tap. 98% chlorine, 93% PFAS, >99% microplastics — independently lab tested.