What is the shelf life of a product if it’s not specified on it?

If there is no shelf life indicated, the product is expected to perform satisfactorily for 2 years from the time of purchase.

what is the difference between the powergard ranges?

Mortein powerGard All insect killer- kills all insects with a lemon fragrance
Mortein PowerGard Odorless Insect Killer- kills all insects with odorless fragrance
Mortein PoweGard Cockroach insect Killer- kills all crawling insects.
Our ranges comes in 300ml and 600ml