Who makes Kirkland Signature Vita Rain Zero, Variety Pack, 20 fl oz, 24-count?
As of July 6, 2026, evidence points to Niagara Bottling as the manufacturer of Kirkland Signature Vita Rain Zero, Variety Pack, 20 fl oz, 24-count, but no tier 1–3 source names the link directly.
The common claim
What most answers say — and what the evidence supports
Kirkland Signature Vita Rain (a Vitaminwater-style enhanced water) is widely assumed to be a generic Costco product with no known maker. The strongest documented lead points to Niagara Bottling: in the 2012-2013 federal class action Maple v. Costco (E.D. Wash., 12-cv-05166), Niagara Bottling LLC was named alongside Costco as the manufacturer of Kirkland VitaRain. Because that record is more than a decade old, was dismissed on standing (so the court made no factual finding), and predates today's reformulated 'Vita Rain Zero' line, the attribution is graded probable rather than confirmed - and it lines up with the separate, independently-sourced indication pointing to Niagara for Kirkland purified water.
Evidence & sources
Every source is graded on the six-tier rubric and archived, so the citation holds even if the original moves or paywalls. The tier badge grades the source; the status grades our confidence in the maker.
Tier 4
Advertising-law watchdog page reproducing the federal court caption "Costco Wholesale Corporation, Niagara Bottling LLC, and Does 1-100," Case No. 12-cv-05166 (E.D. Wash.), and reporting: "A federal judge dismissed a class-action lawsuit against Costco Wholesale Corp. and Niagara Bottling, LLC." Niagara Bottling LLC was named as the manufacturer/bottler co-defendant for Costco's Kirkland VitaRain enhanced water. Court-record class: a defendant's presence in a complaint is an on-the-record naming (tier 4), not an adjudicated finding - the suit was dismissed in November 2013 on standing grounds (plaintiff Maple had not read the label), so nothing was decided about the label's truth, only who the parties were. CourtListener docket #4408847 independently lists 'Niagara Bottling LLC' among the parties (that page is Cloudflare-walled and could not be archived).
Frequently asked
Who makes Kirkland Signature Vita Rain enhanced water?
Is Kirkland Vita Rain the same as Vitaminwater?
Does the same company make Kirkland water and Kirkland Vita Rain?
Get notified when a Kirkland manufacturer changes
Suppliers switch quietly and most sites never notice. We track the changes and log the day a maker moves — the same tracking that powers the change log.
Change-log newsletter · no spam · unsubscribe anytime.