How much memory do I need to ensure 2 version of IOS stored?

I need to order a 3725 router which will be doing WCCP redirects. I've
selected the IP IOS (12313).
It comes with 32MB of flash but I want to make sure that two versions
of IOS can be stored so when an upgrade doesn't work for whatever
reason we can fall back to the previous version.
My question is how much flash memory does an IOS require?
Thank you for any advice.
Reply to
Farouq
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Hi Farouq,
You may wish to investigate the Cisco IOS Software Selector:
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The Cisco IOS Software Selector finds the right Cisco IOS software and the amount of memory you need to run the Cisco IOS features you want to run on your Cisco platform.
Sincerely,
Brad Reese BradReese.Com Cisco Repair Service Experts
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Hendersonville Road, Suite 17 Asheville, North Carolina USA 28803 USA/Canada: 877-549-2680 International: 828-277-7272 United Kingdom: 44-20-70784294
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