Little GiantRFSN-10 115-Volt, Maximum 13-Amp - 1/2 HP, Pump Down Piggyback Tethered Float Switch for Pond, Sump, Sewage, or Effluent Systems, 20-ft. Cord, Grey, 599210

Same Product as You See in Grainger and Other Distributor Sites. Good Quality

Pump fit as expected

My last float lasted 30 years in a basement sump pump that worked hard every time it rained. I live at the base of a hill and I get all the rain from the sidewalk and my neighbor's homes situated above me. This product has been beyond reliable and was still working but not at the proficiency I had come to expect, And after 30 years I believe it was getting a little tired. Time for an upgrade. Thanks for your service. And thanks for a great and reliable product.

This worked perfect for Goulds PE51 1/2 submersible pump. Good buy.

Durability seems to be going downhill. Last one lasted only 23 months. Woke up to find our basement flooded. Checked that float switch drum is in the fully up position (normally would result in the switch being in the closed position), i.e., not stuck somewhere in the sump pit. Bypassed the float switch and sump pump pumped the water level down. So pump is good. Problem is the float switch in the stuck open position.------------------Original review: (rated 5 stars)Good durability: I first ordered this 5 years ago when our old float switch died. It is still working well today. We live in a wet area and our sump pump is running on sunny days too.I just ordered a backup after hurricane Irene reminded me that I don't have a backup float switch. Thought I'd throw in a review here.I researched the three types of float switches out there. Wide angle (this one, think of it as a buoy on a chain), mechanical (think of it as buoy threaded through a rod), diaphram (pressure sensing). I ruled out diaphram pretty quickly, as the pumping range, i.e., pressure set point usually can't be adjusted. Between wide angle and mechanical, wide angle can handle higher starting current draws (85A vs 60A for RVMS type) and large pumping ranges (you are only limited by the length of the cord and the size of your sump pit really), while mechanical (search for RVMS-10, RVMS-15, RVSM-20) has adjustable pumping range from 0.75 in to 6.5 in.Adjustment and range: I anchored the float switch to the 2" NPT discharge pipe that comes out of the sump pump. Activation and deactivation is at roughly 45 degree angle up and down respectively, and depending on your requirements you can decide how long your tether length should be, and how high up on the pipe should you anchor it. Manual for this model shows that if you use 3 inch tether length, you have a pumping range of 5.5 in, although I don't know why you couldn't use shorter length. One thing is for sure, if you want really small pumping range, then RVMS would be a better choice, as 0.75 inch would be pretty hard to achieve for this one.Failure modes: The design of these things are pretty simple. Gravity opens or closes the electrical contacts based on the position/angle of the float. There are two possible failure modes, contacts welded shut (pump always on) or infinite resistance (pump never on), which is how our old one failed.Duty cycles: If you live in a wet area like me, you probably want to go with the highest pumping range that will still keep your basement dry. Otherwise, you are looking at a lot of on/off cycles in a year, and will eventually wear out the switch and/or the pump.The specs can be found online at[...]This comes in different cord length, 10ft, 15ft, 25ft, 30ft.

Just does its job.

Works great

Arrived exactly as advertised

I had bought another float but found it was too sensitive and was on and off a lot. This float aactivates and deactivates around 45 degrees which was perfect for my application.

Excelente producto, recibes exactamente lo que estás comprando

I ordered to replace a liberty pump float which went intermittent after 2 years. It's been in use for a month and works great. Good quality construction.

After wasting time with two of the same crap brand switch that failed and flooded our basement, we got this one and it works great.The install instructions are clear, the plastic housing is more buoyant than most and floats easily, the trip angles are ~+45deg turn on and ~-45 deg turn off as advertised, and the cable is nice and soft, allowing the switch to float and trigger properly.Get this. It's a well known brand and for the small premium over a crap brand, it's well worth it to prevent a flooded basement.

Easy to install, working well