It should work with any baby carrier. It has adjustable clips that you essentially loop around the top straps.
The bottom part has a bit of a pouch that goes over baby's feet. It's also adjustable, with a toggle cinch. There's also a little 'hoody' to go over baby's head :)
This might be a better option if you also want to use it on your stroller, though it attaches via ribbons that you tie. It looks larger than the peekaru ozone, though it's got less of a custom fit - it's just a rectangle.
The cheapest I've found the peekaru ozone is at bynature.ca, though with the strong Canadian dollar, it might be worth shipping it from the US and hope you don't get customs duty/ HST at the border.