Digital BW, The Print

Can someone clear me up on the differences between this cfs from MIS
 
CFS-1270A- D
CFS for Epson 1270/1280/1290 - Pre Assembled with Tubes
$139.90
http://www.inksupply.com/index.cfm?source=html/1270cfs_assmb.html
<http://www.inksupply.com/index.cfm?source=html/1270cfs_assmb.html> 
 
and this one from media street???
 
N-1270
Niagara Continuous Ink Flow System for Epson 1270/1280/1290
$235.00
http://www.mediastreet.com/cgi-bin/tame/mediastreet/niagra.tam?anchor=#top
<http://www.mediastreet.com/cgi-bin/tame/mediastreet/niagra.tam?anchor=#top>


 
Thank you.
 
Jim
 


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