Chicago Faucets 1905-003KJKNF
The Chicago Faucets 1905-003KJKNF is a genuine OEM stem extension kit designed specifically for Thermostatic (T) and Pressure Balancing (P) shower valves. This specialized component is used when a shower valve is roughed-in too deeply behind the finished wall, preventing the standard handle or trim from connecting properly to the internal cartridge. By extending the reach of the valve stem, this kit allows for full operational control of the water temperature and flow without requiring the relocation of the underlying plumbing. Built to Chicago Faucets’ exacting commercial standards, it ensures a precise fit and smooth mechanical movement for 1905-series and 1907-series shower systems.
Expert Insight:
The 1905-003KJKNF is a "problem solver" part. If you’ve added thick tile or a stone slab to a shower wall and now your handle won't reach the valve, this extension is exactly what you need. Installation Tip: Before installing the extension, ensure the valve stem is in the "off" position. This kit must align perfectly with the cartridge splines to ensure your temperature limits remain accurate. Pro Tip: Unlike simple faucets, T/P valves have internal safety stops to prevent scalding. After installing this extension, always recalibrate the high-temperature limit stop on the 1905-006KJKNF cartridge to ensure the water doesn't exceed 110°F-115°F. This is a critical safety step for commercial facilities like hospitals or schools. Have a 1900-series pressure balance valve instead? You might need the 1900-003KJKNF version. Call ProDryers at 888-503-7937 to confirm!
