Rusco1-1/2-140-F Polyester Screened Spin-Down Filter System

What screen size is recommended for house with deep well? I’m looking to filter sediment and sand that occasionally comes in.

Does this item come with the neoprime cover or do I need to purchase that separately

What is the thread size for the flushing opening at the bottom where the ball valve attaches?

How canI order this with a 1000 mesh filter ?