anyone ever use this wash bucket grate?

[VISITOR]

i was browsing around the net and was looking at some products from hi-tech industries. one product they sell to a few different online vendors is the hi-tech magna sponge and i noticed this as well. looks pretty similiar to the grit guard (hopefully it's not a copyright infringement) and i wonder if it's diameter is smaller to fit some of the five gallon buckets that the normal grit guard won't. anyone use one?

original grit guard