Answer
Jan 05, 2024 - 11:57 AM
According to Sloan, 1" is correct and the standard supply to a toilet flush valve. The required operating pressure (flowing) is 15-80 PSI. Attached below are the product specifications if you want to review the product in more detail. If you have any further questions, please don't hesitate to reach out to us directly at either: customerservice@prodryers.com or (888-503-7937).