Cleared Traditional

SPA SHELL (K904106) - FDA 510(k) Clearance

Class II Physical Medicine device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K904106 · Century Manufacturing Co. · Physical Medicine device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Sep 1990
Decision
12d
Days
Class 2
Risk

K904106 is an FDA 510(k) clearance for the SPA SHELL. Classified as Bath, Hydro-massage (product code ILJ), Class II - Special Controls.

Submitted by Century Manufacturing Co. (Aurora, US). The FDA issued a Cleared decision on September 18, 1990 after a review of 12 days - a notably fast clearance cycle.

This device falls under the Physical Medicine FDA review panel, regulated under 21 CFR 890.5100 - the FDA physical medicine 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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Century Manufacturing Co. devices

Submission Details

510(k) Number K904106 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 06, 1990
Decision Date September 18, 1990
Days to Decision 12 days
Submission Type Traditional
Review Panel Physical Medicine (PM)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
103d faster than avg
Panel avg: 115d · This submission: 12d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code ILJ Bath, Hydro-massage
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 890.5100
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 Physical Medicine devices follow this clearance model.