This is the same pump we use in our Blumat Pressure systems. If you'd like to do your own version of this system, we highly recommend this pump - we've tested quite a few and this one is the most dependable, quite, and has ideal pressure and flow specs. It's more expensive than other Shurflo models but with both a built in pressure switch and internal bypass, we haven't seen anything like it yet.
This is a new and redesigned fresh water pump created with a unique one-piece diaphragm and internal by-pass, assuring long life and top performance in all systems. Constructed for high flow demand, low noise and no rapid cycling. SHURflo's quality reputation has been built on the reliability and dependability. The Revolution fresh water automatic demand pump is super quiet, thermally protected and can run dry without damage. Dimensions: 4.90 inch x 8.10 inch x 4.30 inch; Flow Rate 3.0 GPM. 115 VAC.