PlumbingPart Identification & Selection3MediumSolo Operator$ implied

Hard-to-find 1.25-inch ceramic cartridge for Grohe shower handle

No database or search tool that matches physical cartridge dimensions to manufacturer part numbers

Opp. Score

Severity

3Medium

Willingness to Pay

implied

Added

Jun 4, 2026

Implied Software Gaps

Smart cartridge identification app that uses dimensions and markings to find exact replacement

App Concept

CartridgeMatch Pro

A mobile app that identifies plumbing cartridges by diameter, angle, and markings. Users input measurements and stamped codes to instantly get the correct replacement part number and nearby availability.

Key Features

Measure cartridge diameter with phone camera or manual input
Search by stamped codes or degrees
Cross-reference across brands
Show local/online inventory with prices

Target Users: Plumbers and DIY homeowners who need to identify and source obscure plumbing cartridges

Revenue Model: $4.99 per identification, or $9.99/month subscription with unlimited lookups

Part of App Idea

PartMatch Plumber

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