A large cat litter box (Brooklyn)

My fiancé is a large cat better box. She doesn't really have much money. It's because she's so nice to Mike me. And my mom and my grandmother that she treats us out more often than she should. She's a widow and you know, she's just trying to look for a larger Kitty box, you know, for Kitty litter, so the cat could go in. She would really appreciate it or somebody has it
Thank you joe