This listing is for 6 blue large capacity ( 5 liters or 1.32 gallons) Automatic Stock & Pet Waterer. These all-purpose waterers work well for horses, cattle, goats, hogs chickens ducks sheep dogs and other animals. Safely operates between 20-50 psi. Constructed from Heavy duty plastic with a UV protection. Can be easily installed at any height using lag bolts or U bolts, not included. Threads on the float are 1/2 in MIP with connection on the left side but can also be switched to the right. This also has a drain plug making it easy to clean. Shipping is free to lower 48 states Via FEDEX Ground or USPS