DescriptionDIY Auto-Fill Cup: Cups automatically refill with fresh water as your animals drink. Suitable for your flock of chickens, ducks, turkeys, geese, peafowl, or quail. Minimum Quantity: Two cups minimum purchaseDo It Yourself: Transform any container into a custom poultry waterer in minutes using a 9mm drill bit. NOTE: Pressurised systems must be regulated to a maximum of 3psiNo Pecking RequiredVersatile and Easy to Clean: Suitable for indoor and outdoor setups; provide your chickens and other poultry with fresh, clean water anywhere! Cups stay 3/4 full to avoid spills; compatible with any type of container or watering system; the possibilities are endless!What’s in the Box: 1 HenH20 Auto-Fill Cup with attached elbow, silicone washer, wingnut.If you want to convert your system into a pipe design, we have t-junctions available here.