I like my jabao ow10s and ow25. I have them in 3 different tanks. All at least 2 years old now and going strong. The older Jabao pumps didn’t last as long in my experience. I have an old rw? Series I use to keep my saltwater container mixing, if I shut it off it doesn’t like to restart but it runs constant speed 24/7 as long as I don’t mess with it.