What is the size of the O ring inside the water tank connector to water hose? Katrina B. | Hatching Time September 28, 2022 17:27 The diameter of the O ring is about 3/4 of an inch. Related articles What is the HP for the Large Chicken Plucker? How does Middle Divider come off Middle Wall (With Optional Breeding Divider)? What is the difference in the feeding troughs CB25, GL25, BYK vs the CB40, GL40, TYK, KYK? How high should nest boxes be placed off the ground? How often does the Humiconic replacement disk need to be changed Comments 0 comments Please sign in to leave a comment.