Review on Winters Economical Pressure Internals: Precision Testing, Measuring & Inspecting by Mark Morrow

My wife bought a used Hayward pool pump and filter, when I started using it I found the pressure gauge was broken. A little research showed that the Hayward replacement was overpriced junk so I sought and found the Winters line of sensors. So far it works great, tells me when to flush the sand filter when the pressure is off. He must do that.