SKU: 35971039340

Mini Matic 4B Unloader Valve with Adjustable Injector – 180 Bar – Part No: 20890 / 20891

Sale price$94.50 Regular price$105.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Mini Matic 4B Unloader Valve with Adjustable Injector – 180 Bar – Part No: 20890 / 20891The Mini Matic 4B Unloader Valve with Injector is a compact, high performance pressure regulating valve designed for small to medium pressure washing systems. It automatically relieves pressure from the pump when the trigger is released, helping protect components and reduce wear. This model features an integrated adjustable chemical injector and built in bypass, allowing users to draw detergents directly into the flow stream, making it ideal for

The Mini Matic 4B Unloader Valve with Injector is a compact, high-performance pressure-regulating valve designed for small to medium pressure washing systems. It automatically relieves pressure from the pump when the trigger is released, helping protect components and reduce wear.

This model features an integrated adjustable chemical injector and built-in bypass, allowing users to draw detergents directly into the flow stream, making it ideal for mobile setups, detailing rigs, or small wash bays requiring detergent application.

Rated to 180 Bar (2600 PSI), the Mini Matic 4B supports flows up to 18 L/min and is compatible with a range of Annovi Reverberi XT and RC pumps.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35971039340

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4.5 ★★★★★
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Verified Purchase
Foreverfit
Lexington, US
★★★★★ 5
fits my S1 perfectly
Color: Omni S1 Pro 17P
works well with my vaccum
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2025
L
Verified Purchase
lilas bouskila
Charlottesville, US
★★★★★ 3
Not a good fit with the eufy
Color: Omni S1 Pro 17P
It’s a good value for all these pieces, but the dust bag does not fit well with the Juvi. I haven’t tried the other piece pieces. I will return it.
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Reviewed in the United States on November 22, 2025
V
Verified Purchase
Vinny
Louisville, US
★★★★★ 4
Mostly fine replacement parts
Color: Omni S1 Pro 17P
I can't get either of the rolling mops to snap into place no matter what i do, might have to tack on something so they stay in place. The main brush was a fine fit, but the side brushes seems more flat than the stock ones and it makes some weird noise now, they did snap on though. Filter was fine though and I haven't tried a dust bag yet, still good value even if I can't get the mops to fit for me!
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Reviewed in the United States on December 6, 2025
J
Verified Purchase
JASON D LONG
Los Angeles, US
★★★★★ 5
Good quality overall
Color: Omni S1 Pro 17P
Good kit I ordered for my S1 Pro. All of the accessories seem to be of good quality and have held up well over time. Order without hesitation.
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Reviewed in the United States on May 4, 2026
M
Verified Purchase
Marco Carranza
Alexandria, US
★★★★★ 5
It works
Color: Omni S1 Pro 17P
Is compatible with my vacuum and had no issues
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Reviewed in the United States on September 24, 2025

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