Certified. Tested. Trusted.
Every system we install is tested and certified by independent, accredited third-party laboratories. Below is what each standard covers and what it means for your home.
← Back to HomeVerifies that the catalytic carbon and filtration media effectively reduce aesthetic contaminants that affect water taste, clarity, and smell — specifically chlorine, chloramines, and particulate matter.
Crisp, fresh-tasting drinking water and clean shower water without the chemical or chlorine odor.
Certifies residential water softeners for hard mineral removal efficiency (calcium and magnesium), pressure durability, and salt and water conservation during regeneration.
Helps prevent hard water scale buildup, protects plumbing and water heaters, and leaves skin and hair feeling naturally soft.
Certifies reverse osmosis (RO) drinking water systems for reduction of Total Dissolved Solids (TDS) and specific contaminants including lead, arsenic, nitrates, and fluoride, as verified in the system's certified performance data sheet.
Premium, bottled-quality drinking water right at your kitchen tap — without the ongoing cost of bottled water.
Verifies that the internal components in contact with drinking water — valves, fittings, housings, and faucets — comply with federal and California lead-free requirements (less than 0.25% weighted average lead content).
Confidence that the system's own wetted components meet the lead-free material standard, so the equipment is not a source of lead in your water.
An ANSI-accredited independent third-party laboratory that tests system performance and audits manufacturing facilities to verify NSF standard claims.
Independent verification that safety and performance claims are backed by an accredited laboratory — not by manufacturer marketing.
Covers electrical safety, plumbing pressure limits, and structural durability requirements for drinking water treatment systems across North America.
Tested structural strength and pressure tolerance, so the system holds up to normal household plumbing pressure fluctuations.
Certification applies to the specific systems and models listed on each certifying body's public listing. Reduction claims for any individual contaminant are defined by the certified performance data sheet for that system. Our Cove reps can walk you through the exact certifications that apply to the system recommended for your home.
Want to see which certifications apply to your system?
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