Looking on the internet deeply has found these results:

for resale is the most popular phrase on the web.

for resell 1227,000 results on the web	for resale 111,200,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	services purchased for resale other than 6.6 and 7.4 Goods purchased for resale other than 1.6 Except for one exporter/producer included in the sample, the pattern of trade for FPFAF originating in China is characterised by the absence of related intermediaries importing the product concerned into the Community for resale. the purchase of goods for resale in unaltered state; Energy products purchased as a raw material or for resale without transformation should be excluded. losses of goods for resale (e.g. shoplifting). The output of wholesale and retail services is measured by the trade margins realized on the goods they purchase for resale. But it's useless because it's been wiped for resale.

for resell

1227,000 results on the web

for resale

111,200,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

services purchased for resale other than 6.6 and 7.4
Goods purchased for resale other than 1.6
Except for one exporter/producer included in the sample, the pattern of trade for FPFAF originating in China is characterised by the absence of related intermediaries importing the product concerned into the Community for resale.
the purchase of goods for resale in unaltered state;
Energy products purchased as a raw material or for resale without transformation should be excluded.
losses of goods for resale (e.g. shoplifting).
The output of wholesale and retail services is measured by the trade margins realized on the goods they purchase for resale.
But it's useless because it's been wiped for resale.