Plastic for S/H tubs

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What is the most durable plastic for S/H pots? I want to get some larger containers for larger plants. I see food containers made from polypropylene and high density polyethylene. There are probably others.

The transparent 1-quart/liter deli containers from my local Smart & Final have lasted 5 years and still look new. Some opaque white 2-quart tubs of a thin and different plastic are shattering after only 3 years of use.