Where to buy HDPE filament?

Hello everyone! I bought a kilo of HDPE from Filaments.ca and they are now out of stock and I fear we will run out before the end of our job. Looking for 100% HDPE, food grade 1.75mm filament. It seems HDPE is the red-headed step child of the filament world... what gives?!

Anyone know of a source within reasonable shipping distance of the northwest corner of the USA?

Thank you very much!
-HK

There is suppose to be a supplier in Montreal area not sure if they have that type. also 3dprintingcanada.com in hamilton and filaments3dquebec.ca

Neither of those sites have 100% HDPE - closest they come is T-Lyne which is a flexible copolymer.

Thanks for your help! 3dprintingcanada has an amazing selection of filament so that will come in handy.