Fisher & Paykel FlexiFit HC431 Full Face CPAP Mask Assembly Kit - All Cushions (S, M, L) Included

    Top Review

    "comfortable as always, i use it with a whole head mesh cap instead of the straps"

    November 22, 2013

    Product Overview

    Mask assembly kits are a way to refresh your mask without having to purchase the complete mask. This is the FlexiFit HC431 Full Face CPAP Mask Assembly Kit - All Sizes (S, M, L) Included.

    Manufactured by Fisher & Paykel.

    Product Features

    The FlexiFit HC432 Full Face CPAP Mask Assembly Kit - All Sizes (S, M, L) Included comes packaged with all three sizes of cushions - Small, Medium and Large. It includes the Fisher & Paykel "Fit and Forget" technology to maintain the seal.

    The headgear is not included with the product but it can easily be added on the "Customize & Buy" screen by selecting HC431 Full Face Mask Headgear.

    To read about all of the HC431 features visit the FlexiFit HC431 Full Face Mask CPAP Mask with Headgear.

    PLEASE NOTE: This package DOES NOT include the headgear.

    Return On Warranty Issues Only


    This Product Includes...

    • HC431 Full Face Mask

    Product Specifications

    Materials Used:

    • Mask Base: Polycarbonate (PC)
    • Non-Rebreathing Valve: Polycarbonate (PC) / Silicone (LSR)
    • Elbow: Polycarbonate (PC)
    • Glider Strap: Nylon (PA)
    • Glider Clip: Acetal (POM)
    • Forehead Cushion: Silicone (LSR)
    • Silicone Seal (S, M, L): Silicone (LSR)
    • Headgear Lycra / Polyurethane Foam Laminate
    • Pressure Ports Connector (Euro Only): Polycarbonate (PC) / Santoprene (TPE) 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

    HC432 and HC431 Compatibility

    432 silicone cushion and foam cushion insert will not fit the 431 frame.

    431 silicone cushions made after April 2006 will fit the 432 frame.

    431 silicone cushions made before April 2006 will not fit the 432 frame.

    If you are switching from the HC431 to the Flexifit™ HC432 mask, the sizes run a little smaller on the HC432.

    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.

    Where do I find the size?

    The mask frame does not have an identifiable size because it offers a universal fit to each of the HC431 full face cushions.

    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.

    Glider Strap Variations

    The original HC431 glider strap has a clip with a 2 point interlocking system. The newer HC431 headgear has a clip with a slim indention used to interlock the headgear to the mask.

    Please Note: The 2 point interlocking system headgear is only compatible with the original style mask. The newer HC431 headgear is intended for the newer mask only. The mask and headgear cannot be interchanged.

    Replacement Parts