The Adjustable Frame Model and the Economy Frame Model are designed to stay put with or WITHOUT the grating in place. These models use a frame that adjusts to fit the opening of many drains. The frame will prevent the Drain Guard from falling even with a full load of sediment and debris.
The other advantage of these models for those of you concerned with aesthetics (you know who you are) is that there is no fabric visible at the street level. The fabric of the other models must be trimmed if a cleaner appearance is wanted.
One last thing and then I’ll let you go. I’m sure you’re wondering about the difference between these two models. Other than the frame, they are the same. As you might guess from the name, the frame used for the Economy Frame Model is not quite as stout as the one used for the Adjustable Frame Model. Also, the frame in the Adjustable Frame Model is reusable and the Drain Guards can be purchased separately without any frame. Conversely, the Economy Frame Model does not have any reusable parts.
Ok, your mind is in the gutter now. Please try and keep it there. See ya next week!