A Bunn 43500.123 Diaphragm maintains proper valve response to support smooth fluid control within the system.
The diaphragm regulates valve movement and fluid control within the equipment so flow responds accurately during operation. Its flexible, pressure-responsive construction matters because it creates a reliable seal and consistent actuation that support stable performance over repeated cycles.
The diaphragm may be approaching replacement if the equipment shows inconsistent flow control, delayed valve response, leaks or reduced operating stability. Physical signs can include cracking, hardening, tearing or warping and environmental signs may include wear from heat, pressure fluctuations or chemical exposure.
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We allow you to return most new, unopened real OEM parts within 90 days of delivery, so go to our Returns page for more information on the policy. Certain items, including custom orders, may not be eligible for return.