Help & Support


Need help troubleshooting? Find your model below for a quick tutorial video on technical support.


Stealth Toilet Line
The Original (N7717, N7716, N7726RB, N7714)
Phantom (N7747EB, N7747T)
One Piece (N7711)
Topics: Introduction, Toilet Running, Poor Flush, Need to Snake, Weak Flush/Gurgling

Dual Flush Toilets
N2316, N2316-BISC, N2428R-DF, N2420, N2430E
Topics: Introduction, Water Not Filling Tank, Material Left in Bowl, Bowl Slowly Emptying, Toilet Running
EcoLogic (flapperless) Toilet Line
Sentinel (N2235RB, N2235EB, N2235T, N2216T)
Topics: Introduction, Toilet Running, Poor Flush, Does the Water Well Up?, Dump Bucket getting stuck, Changing the Handle Placement Side
Single Flush and Flapper Toilets
N2450E, N2428E, N2428R, N2410E, N2442E, 331-725B/331-725T
Topics: Introduction, Fill Valve Running, Water Not Filling Tank, Not Processing Full Flush, Material Left in Bowl, Bowl Slowly Emptying


Replacement Part Order Form

Have a toilet under warranty that needs a new part? Select the item you need below and we will ship to you at no charge! Click here to read how to find your toilet model number.
If you are having trouble or don’t see the part you need on the list below, please call our support line below during hours of operation and we’ll help you out.

Continental U.S.: 5-6 days
Canada, Hawaii or Puerto Rico: 10 days.



Need assistance or have a question? Contact our award-winning customer service team and they’ll get back to you in a jiffy!
Also see our answers to Frequently Asked Questions here!

Niagara Customer Service Team:
45 Horsehill Road
Suite 105
Cedar Knolls, NJ 07927


Hours of Operation:
Monday – Friday
8:30am – 6:00pm EST