Peristaltic PUmp

Hi All

Can someone tell me of a similar alternative for this peristaltic pump in the US.

http://www.wmcpumps.com/pdf/150_stepper_spec_drg.pdf

http://www.williamson-shop.co.uk/150-series-stepper-motor-pump-10878-p.asp

Thanks

This may work in your application, take a look here (not a stepping motor though) http://www.adafruit.com/products/1150