Flushmate III - 503 Series

1.6 gpf system for Two-Piece and One-Piece toilets

Specifications

Flow Rate 1.6 gpf
Minimum Operation Pressure 20 psi
Flushmate Equipped Toilets

New design provides stronger performance.

+25% miso extraction compared to previous models. Based on the ASME standard and internal testing results show up to 1450 grams of miso waste extraction.

See the details

Models

M-101526-F31 for all OEMs except Kohler K4404, Gerber 28-385, and -F3B- serial numbers
M-101526-F31K PF/2 Energizer and WDI EcoFlush Upgrade Kit
M-101526-F32 for Kohler K4404
M-101526-F33 for Gerber 28-385
M-101526-F3B 501A & 501B Series replacement with push button
M-101526-F3BK 501A & 501B Series replacement with handle
M-102540-F3 for Gerber 21-012
M-102540-F3A for American Standard 2045.013
M-102540-F38 for American Standard 2042.017 and Corona 30633

All the resources you need.

Downloads

503/503H/504 Troubleshooting Guide
503/503H/504 Owner's Operation and Installation Guide
503/503H/504 Replacement Instructions
503 User Manual
503/504 Brochure
503/503H Replacement Parts Guide
Competitor Upgrade Kit Brochure

Videos

How to Test and Replace your Flushmate System
How Flushmate Works
Points to Remember about Flushmate
Troubleshooting Flushmate