Sloan OEM parts kit. Replacement Bak-Chek Stop internal parts. For 1" screwdriver control stops. Includes the NK collar & sleeve, control stop plug, and spring. Compatible with H-540, H-600, and H-700 Bak-Chek control stops.
If your flushometer is not allowing enough water through, even after adjusting the control stop, you may need to replace the Bak-Check Stop (control stop) internal parts.
