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Extension pipe

Extension pipe

Regular price $54.00 USD
Regular price Sale price $54.00 USD
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30 in stock

  • Conceals pumps and plumbing behind wall cleanly
  • PVC material is rust and corrosion-defiant
  • 4 in. diameter of smaller end and 5 in. diameter of larger end
  • Sealed connection prevents water leakage
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Saniflo Extension Pipe – 18" Installation Accessory for Macerator Systems


The Saniflo Extension Pipe is a practical accessory designed to simplify the installation of external macerators by allowing the pump to be concealed behind a finished wall. Ideal for use with models such as Saniaccess 2, Saniaccess 3, Saniplus, and Sanibest Pro, this pipe streamlines the setup process while maintaining a clean and modern bathroom aesthetic.

Key Specifications

Length: 18 inches

Pipe Diameter (smaller end): 4 inches

Bell Housing Diameter (larger end): 5 inches

Product Benefits

Time-Saving Installation: The 18” extension pipe was engineered to speed up macerator setup, reducing labor time for contractors and DIY installers alike.

Secure, Watertight Seal: An integrated inner gasket allows for a seamless connection to the toilet’s rear spigot, ensuring no leaks after flushing.

Installer Recommended: Known for its ease of use, this accessory is highly recommended by professionals for any compatible Saniflo system installation.

Improved Design Flexibility: Enables placement of the macerator behind walls, enhancing the aesthetic appeal of your bathroom by hiding mechanical components.

Optimized Gravity Flow: When using the extension pipe, the toilet bowl should be elevated by 3/8 inch to ensure effective gravity flow to the macerator unit.


Upgrade your Saniflo installation with the convenience and flexibility of the Saniflo Extension Pipe. Whether you’re building a new bathroom or retrofitting an existing one, this accessory helps create a sleek finish while simplifying installation.