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Electrical, or other field serviceRepair and Maintenance Decisions3MediumHomeowner$ implied

Unable to identify Kohler shower valve model to buy compatible matte black trim kit, leading to multiple failed purchases.

Existing resources lack an easy way to identify exact valve model from casting numbers and surface-level markings, and compatibility databases are incomplete or confusing for older valves.

Severity

3Medium

Willingness to Pay

implied

Added

Apr 30, 2026

Workarounds Described

bought a trim kit that doesn't fit
going back and forth trying to figure out what valve I have
identify from photos on Reddit

Implied Software Gaps

Visual valve identification tool that matches casting numbers and photos to manufacturer databases
Centralized compatibility database for trim kits across brands and models

App Concept

ValveFinder Pro

A mobile app that uses photo recognition and casting numbers to instantly identify shower valve models and list compatible trim kits. Upload a photo of the valve or input casting numbers, get the exact model and all compatible trims, with links to buy. Eliminates guesswork and returns.

Key Features

Photo-based valve identification using AI
Casting number database search
Compatibility checker for trim kits and cartridges
Direct purchase links to verified matching products

Target Users: Homeowners and DIY enthusiasts doing bathroom renovations, as well as plumbers needing quick valve identification.

Revenue Model: Freemium: free identification of up to 3 valves per month, $4.99 one-time fee for unlimited identifications, or $2.99 per identification report.

Existing Solutions Mentioned

Amazon's casting number searchKohler trim compatibility lookupReddit forums

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