MTM Hydro MG4000 Unloader - 4500 PSI

Marsoni

M251S

$70.92

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

MTM Hydro MG4000 Unloader - 4500 PSIDescription MTM Hydro's MG4000 unloader series is a trapped pressure unloader that has universal 3 8" ports for mounting, installation, and bypass requirements. The MG400 unloader readily competes and regularly replaces competing models such as the VRT3 or Pulsar Unloaders. With its enticing price point, this Italian designed and manufactured unloader can be found across dozens of industries including Mobile Cleaning, Car Wash Installations, Mining,

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Why did I wait so long to get one of these?!? I am the stereotypical throws-like-a-girl person, and my dog really needs to have an option that forces her to run far and fast. This is it. I can get that ball half a soccer field away at a minimum if I want. The ball is super bouncy, which adds an element of fun to her attempts to tame it and bring it back. Super worth the money (which wasn't much!). I've never had one of these before, so can't compare to the non-folding version. This one is easy to carry and fits in a drawer for storrage. No way you can fit it in a pocket, especially if you have a phone in one and dog treats in the other.

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Reviewed in the United States on April 14, 2026

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Leo

Grantham, US

★★★★★ 5

Great usability

I prefer this version over the non-foldable stick, as this one I can fit into my bag and carry it out easily. Great size and has a locking feature to prevent it from folding up when throwing. Highly recommend, my dogs love fetch and it is hard to chew if they get their hands on it.

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Reviewed in the United States on September 13, 2025

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Jennifer L Kasanke

Phoenix, US

★★★★★ 5

Holds up! Good thrower!

Good quality! Throws far! Love this brand!

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Reviewed in the United States on April 10, 2026

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Michael

Phoenix, US

★★★★★ 4

Almost Perfect

If you’ve ever seen these things, the foldable ones are just as good as the standard ones. I just wish when you folded it up there was a way to lock it into that position. When you unfold it to play, you lock it into place with the orange locking slide so it doesn’t fold up on you. But when you’re done playing and fold it up, there’s no way to lock it into that position, it can keep unfolding if you carry it around with you, plus the orange locking slide keeps sliding up and down. It’s not a huge deal, but they could’ve made it better.

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Reviewed in the United States on April 29, 2026

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Omaha, US

★★★★★ 5

Helpful

I’ve used Chuckit ball launchers, this one is foldable, great for my back pack when camping with my dog

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Reviewed in the United States on February 27, 2026