Cleared Traditional

K243898 - Chlorine Sentinel II (FDA 510(k) Clearance)

Class II Gastroenterology & Urology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K243898 · Nelson Environmental Technologies, Inc. · Gastroenterology & Urology device
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Apr 2025
Decision
113d
Days
Class 2
Risk

K243898 is an FDA 510(k) clearance for the Chlorine Sentinel II. Classified as Strip, Test, Reagent, Residuals For Dialysate, Disinfectant (product code MSY), Class II - Special Controls.

Submitted by Nelson Environmental Technologies, Inc. (Mcallen, US). The FDA issued a Cleared decision on April 11, 2025 after a review of 113 days - within the typical 510(k) review window.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.5665 - the FDA gastroenterology and urology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Gastroenterology & Urology review framework, consistent with the majority of Class II 510(k) submissions.

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Submission Details

510(k) Number K243898 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 19, 2024
Decision Date April 11, 2025
Days to Decision 113 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
17d faster than avg
Panel avg: 130d · This submission: 113d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code MSY Strip, Test, Reagent, Residuals For Dialysate, Disinfectant
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.5665
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Gastroenterology & Urology devices follow this clearance model.