Available in a variety of sizes, these great quality coop cups will make your life easier when it comes to caring for your flock. Easy to clean, sturdy fittings for simple attachment and long-lasting, follow the sizing chart below to find the ideal coop cup for your aviary. All coop cups come with either hook or wingnut (clamp) fittings so all you need to do is choose which style will suit your aviary or cage mesh.