YU21405 Unloader Green Spring

Marsoni

M251S

$189.91

Get it in 3 business days with 1 day shipping. Friday, May 29

YU21405 Unloader Green SpringFEATURES: NEW improved design, trapped pressure unloader Reduced pressure loss Extremely reliable Easy maintenance SPECIFICATIONS: Maximum volume: 21 GPM Maximum pressure: 4500 PSI Maximum temperature: 195F. The valve is designed for continuous use at a water temperature of 140F. It can operate for short periods at a maximum temperature of 195F. Inlet: Dual 1 2" FPT Discharge: 1 2" FPT Bypass: 1 2" FPT

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I have been using this same kind of watch for 10+ years. I like the belt like strap and the small size. I also appreciate how it has a light on it, the date, and the stop watch. I haven’t had any issues with the battery. These watches have held up well for me although I try to avoid getting them wet. The buttons are hard to press when you first get them but get a little easier to press over time. I still have issues remembering how to change the time and typically have to look up how. The silver parts on the front do wear out over time and turn copper colored. I wore one of these watches for around 5 years before buying a new one when the band which holds the excess space from the band broke. Attached is a picture of the watch that I wore for at least 5 years and a brand new one that I bought.

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Reviewed in the United States on April 11, 2026

Verified Purchase

S. C. Lehman

Dallas, US

★★★★★ 5

Perfect for School

Color: Blue/Silver-Tone/Digital

Purchased as a for a middle schooler who isn’t allowed any electronics at school during school hours. Helps keep her on task without breaking the smart device policies. Perfect “old school” way to work.

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Reviewed in the United States on March 18, 2026

Verified Purchase

Placeholder

Pawtucket, US

★★★★★ 3

hard to read display, no manual included.

Color: Black/Black/Digital

I haven't decided yet whether or not I will keep the watch. Problem is there is no instruction manual attached and you cannot find one online. However if you call Timex support they will email you the manual if you give them the model number which is included in Amazon's product description. However even with the manual watch is very hard to set. It lacks some functions normally Timex has like time can only be set up there is no down button. And most importantly display is minuscule. So it is really hard to read to set. Watch is a ladies watch. It is small and I like it a lot. But buttons are hard to operate and it is hard to read.

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Reviewed in the United States on April 17, 2025

Verified Purchase

Amazon Customer

Louisville, US

★★★★★ 5

Great item

Color: Black/Silver-Tone/Digital

Great item

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Reviewed in the United States on March 5, 2026

Verified Purchase

Lil

Boise, US

★★★★★ 5

Amazing quality and well worth it!!!

Color: Black

Great watch! My son saw his friend have and was impressed so I got him one! This one doesn’t have a connection point from the band to the watch so it can’t break there which has been the issues with all his other watches. This is easy to setup and use! It worked so great that I got one for my other son! They both say the size and options are perfect! Highly recommend!

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Reviewed in the United States on January 14, 2026