For the degus I use a bottle by L&M I think...it's purple. When I had hamsters I used Habitrail or SAM bottles. Rabbits aren't rodents but for them I use Oasis for one cage and a Critter Cantine for the other...wait, I bought a new water bottle today...I forgot what brand, lol.
"We weep for a bird's cry, but not for a fish's blood. Blessed are those with a voice."