Seems to be nation-wide
Some of the deals are definitely better than others (total of 61), Coles online orders require a min spend of $50 even when click and collect
Can get $2 delivery if you're not too fussy about the timings
Here's a small list:
Sistema Double Wall Stainless Steel Bottle $10.50 https://shop.coles.com.au/a/national/product/sistema-to-go-d…
Sistema Plus Rectangle Containers 1 Litre (x3) $6.75 https://shop.coles.com.au/a/national/product/sistema-klip-it…
Sistema Plus Square Containers 520ml $6.00 https://shop.coles.com.au/a/national/product/sistema-klip-it…
Sistema Ultra Clear Tritan Container 700mL $4.25 https://shop.coles.com.au/a/national/product/sistema-ultra-c…
Sistema Klip It Klip It Plus Juice Jug 2L $5.50 https://shop.coles.com.au/a/national/product/sistema-klip-it…
Sistema Plus Rectangle Containers 2.2 Litre $8.00 https://shop.coles.com.au/a/national/product/sistema-klip-it…
Sistema Klip It Plus Container 180mL $3.25 https://shop.coles.com.au/a/national/product/sistema-klip-it…
Sistema Stainless Steel Doubled Walled Bottle 650mL $13.50 https://shop.coles.com.au/a/national/product/sistema-stainle…
Sistema Stainless Steel Chic Bottle 600mL $12.00 https://shop.coles.com.au/a/national/product/chic-bottle
Even at 50% off they look a little shit.