Product Description

This is the official OEM replacement firebrick BACK REAR refractory for the BIS Ultima or Lennox Brentwood wood fireplace.  This replacement firebrick ships new in original packaging.  BIS Ultima Wood Fireplaces are also referred to as Security, Lennox, as well as Astria wood fireplace (see below).

BIS Part Number: PR-SR2203

Product Description: Back Rear Firebrick Replacement. This brick measures 22 3/4″ x 12 7/8″.

PLEASE NOTE – There is an ‘Ultima CF‘ model and a ‘Brentwood LV‘ model and this brick will NOT work for those models.  The bricks are similar but have a different aesthetic and the sizes are slightly different. See picture below for comparison.  If you have an ‘Ultima CF‘ or ‘Brentwood LV‘ – the compatible refractories can be found here.

Applicable Models:

• Security BIS Ultima
• Lennox Brentwood
• May fit other models, see below

Please check your manual to ensure this is the correct brick part number.  Friendly Fires stocks and sells other BIS replacement parts.  Please contact us if your part is not listed on our website.

Shipping Note: Replacement firebricks are heavy and can be damaged in shipping.  We do our best to package the bricks, but hairline cracks can be present once they arrive.  There is nothing we can do to avoid this unfortunately.  Please note – hairline cracks in firebricks are perfectly safe – only if there are chunks missing will Friendly Fires replace the brick under shipping warranty.

If your part is not listed on our website, please contact us and we would be happy to help try and source it!

This genuine Security BIS Ultima replacement brick is typically in stock ready to ship.