Pieces Tunnel Ext White 300,400,500 Series
Petsafe Staywell Tunnel Extension for Petsafe 300, 400, 500 Series Pet-Entry Doors, White
(as of 20/04/2010 09:14 - more info)
$10
$10
Listed Under: Doors, Gates & Ramps
Tunnel extension for Staywell 300, 400 and 500 series cat flapsAdds an extra 1-7/8 inches for flush installation in thicker walls and doorsEasy to install for quick setup in most walls2 extensions req..read more
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This pet tunnel is easy to install. I choose this one because it is possible to order additional extensions. I needed multiple extensions for both tunnels. The extensions and shipping cost as much as the door itself. Extensions are not that easy to find.
Great for extending the space between the interior and exterior parts of a cat door. Though I was told 2 sections would work, you’ll actually need 3 if you’re going through drywall, studs, osb and vinyl siding. If you cut out the siding you could get away with two. I don’t want the edging around the door though.