Fisher & Paykel Silicone Seal (Cushion) for HC431 & HC432 Full Face Mask

Top Review

"Super comfortable and NO LEAKS. Best mask I have. I own two other different brand masks that I thought were good...nothing compared to this."

April 5, 2011

Product Overview

Manufactured by Fisher & Paykel.

Product Features

The Silicone Seal (Cushion) for HC431 & HC432 Full Face Mask is the clear silicone cushion for use with both the Fisher & Paykel HC431 and HC432 Full Face Mask.

This is the silicone seal only in the selected size. This product does not include the Foam Cushion Insert. Only the HC432 uses the foam insert.

The manufacturer offers this product in three sizes only:

  • Small
  • Medium
  • Large

The manufacturer does NOT offer the size Extra Large seal alone.

The Silicone Seal is available in combination with the Foam Insert and can be viewed here: Flexi Foam Cushion Insert and Silicone Seal Kit for the FlexiFit HC432 Full Face Mask.

Return On Warranty Issues Only


This Product Includes...

  • Cushion in Selected Size always offers these services:

  • 8 am to 8 pm CST Toll Free Phone and Email Support
  • 24 hour access to our Support Forum
  • Learning Center for information on sleep apnea and cpap equipment
  • Consumer Purchasing Trends Reports
  • Warranty Services for all items purchased through
  • Insurance Compliant Invoices
  • Free Prescription Request System

Important Tips

Where do I find the size?

To find the size of the cushion, turn the mask to look at the flat bottom of full face cushion. Large embossed letters spell out the words "S M A L L," "M E D I U M," or "L A R G E." The words are found near the rim connecting the mask frame to the full face cushion.

Frame and Cushion Compatibility

  • The HC432 foam insert and silicone cushion will not fit the HC431 frame.
  • The HC431 silicone cushions made after April 2006 will fit the HC432 frame. The HC431 silicone cushions made before April 2006 will not fit the 432 frame.
  • The Flexifit HC432 mask size runs a bit smaller than the Flexifit HC431.
  • The manufacturer has stamped the part number (431 or 432) identifying the mask on the upright bar for the forehead support. The manufacturer did not include the alpha characters "HC" in front of the numeric characters.

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