I found that Samson sells these as a 5D, 3/4" NPT and 1.2 meter chain, direct to homeowners from Canada, $90.00 and $25 shipping UPS.
Debbie, was the contact person at Samson
Found this info at Hearth.com posts, thanks. Phil wherever you are!
Here is where I purchased it at:
*Samson Controls Inc.-Canada*
Contact Debbie Bharwani
Tel: 905-474-0354 x248
Link to the manual for the Samson 5D unit, its on their website:http://www.samson.de/pdf_en/e05300en.pdf