Declaring at the Border.

[Disney Ontario]

Hi. We are going over the border to Port Huron over night shopping in early July. DD's boyfriend wants to buy a fire extinguisher for his car thats being built. Is it legal to bring one back over? We did over in Buffalo in December but now I am wandering.

 

[CanadianPaco]

I find this website usefull for such questions. Hope it helps!
http://www.cbsa-asfc.gc.ca/menu-e.html