Heavy Duty Glass Water Bottles Bottle Size:16 Ounce it prevents your outer cover

it prevents your outer cover from being propolized and stuck to the hive body

Translucent plastic makes it easy to view water level

and 6-foot oil-resistant hose with screw-on brass fittings

Nipples are easy to install and help keep water clean and prevent disease

Heavy Duty Glass Water Bottles Bottle Size:16 Ounce it prevents your outer coverThis glass bottle easily attaches to wire cages with mounting hardware, and is quick to remove for refilling and cleaning. Features a stainless steel drinking tube and non toxic USDA approved rubber stopper. Available in 16 ounce and 32 ounce bottle sizes. Small Tube: Measures 5 16 inch. Best for small birds and smaller animals. Medium Tube: Measures 7 16 inch. Best for hookbill birds such as Conures, African Greys, Quakers, or Senegals. Also great