3-inch Flush Valve Seal Gasket for Toilet Tank

Reliable OEM Manufacturer for Toilet Sealing Solutions

Our Custom 3-Inch Flush Valve Seal Gasket is designed for toilet tanks that require stable sealing performance, precise fit, and long service life. As a professional toilet seal gasket manufacturer, we specialize in OEM & ODM production for toilet brands, sanitary ware factories, and replacement part suppliers worldwide.

This gasket is engineered to prevent water leakage between the flush valve and toilet tank, ensuring efficient flushing performance while reducing maintenance and water waste.

Product Specifications

• Product Name: 3-Inch Flush Valve Seal Gasket

• Application: Toilet tank flush valve sealing

• Standard Size: 3 inch (custom sizes available)

• Material Options:

• EPDM (recommended for water resistance)

• Silicone rubber (high elasticity & aging resistance)

• NBR / NR (optional upon request)

• Color: Black, red, blue, or customized

• Hardness: 40–80 Shore A (customizable)

• Temperature Resistance: -20°C to +120°C (material dependent)

Key Features & Benefits

✔ Leak-Proof & Secure Sealing

Precision-molded to ensure a tight seal between the flush valve and toilet tank, effectively preventing water leakage and pressure loss.

✔ Durable Rubber Material

Made from high-quality rubber compounds with excellent resistance to water, chemicals, aging, and deformation, suitable for long-term use.

✔ OEM & Custom Design Support

We support custom molds, drawings, samples, logos, packaging, and material formulations to meet different toilet designs and market requirements.

✔ Compatible with Major Toilet Brands

Designed to fit most 3-inch toilet flush valve systems, making it ideal for both original equipment manufacturing and aftermarket replacement.

Manufacturing Capabilities

As an experienced custom flush valve seal gasket manufacturer, we offer:

• In-house mold design & development

• Compression molding & injection molding

• Strict QC inspection (size, hardness, sealing performance)

• Small MOQ support for OEM orders

• Stable bulk production & on-time delivery

Typical Applications

• Two-piece toilet tanks

• One-piece toilet tanks

• Residential & commercial toilet systems

• OEM toilet manufacturing

• Replacement flush valve repair kits

Why Choose Us as Your Manufacturer?

• Specialized in toilet tank rubber seals

• Rich experience serving global sanitary ware brands

• Support OEM / ODM / private label

• Factory-direct pricing & stable quality

• Fast sample development & professional technical support

Get Custom Solutions for Your Toilet Flush Valve

Whether you need standard 3-inch flush valve seal gaskets or fully customized rubber sealing solutions, we are ready to support your project from design to mass production.

📩 Contact us today to get samples, drawings, or a competitive OEM quotation.