You’re in the right place for double feeder.By now you already know that, whatever you are looking for, you’re sure to find it on Three Water.we guarantee that it’s here on Three Water. This product has excellent rust resistance. It has passed the salt spray test which requires it to be sprayed continuously for more than 3 hours under certain pressure. . We aim to provide the highest quality double feeder.for our long-term customers and we will actively cooperate with our customers to offer effective solutions and cost benefits.