Does this work for 4 gpm?

Yes it works with up to 10.5 GPM

will this vrt3-310 werk on a 400 psi pumptec

I believe this would work on any 4000 psi pressure washer, not a 400 psi.

My pw is 3,500 psi. any problem with using this (cheaper) black spring version rated for 4,500 psi?

No problem using the black spring.

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Annovi Reverberi VRT3-310 Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, Brass

Annovi Reverberi VRT3-310 Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, Brass

Product ID: 16715094

Details

Brand
AR ANNOVI
Exterior Finish
Brass
Inlet Connection Size
0.38 inches
Inlet Connection Type
Female Pipe
Item dimensions L x W x H
8 x 3 x 4
Material
Brass

💧4500 PSI max pressure

🔧Adjustable pressure knob

⚙️10.5 GPM max flow rate

€ 117.70

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your pressure washing game with precision and power!

DURABLE BRASS BUILD - Crafted from premium brass for long-lasting reliability and corrosion resistance
SMART BYPASS SYSTEM - Automatically diverts water flow to prevent pump damage and extend equipment life
PRECISION ADJUSTMENT - Easily tweak pressure with the built-in adjustment knob for tailored performance
SMOOTH FLOW MANAGEMENT - Supports a max flow of 10.5 GPM to keep your tasks efficient
POWERHOUSE PRESSURE CONTROL - Handles up to 4500 PSI for professional-grade cleaning power

The Annovi Reverberi VRT3-310 Unloader is a robust brass valve designed to manage pressure washer flow with a max capacity of 4500 PSI and 10.5 GPM. Featuring an adjustable knob and a smart bypass system, it ensures optimal performance and pump protection, making it a must-have upgrade for serious outdoor cleaning pros.

Specifications

ASIN	B008VAL4H4
Best Sellers Rank	#12,987 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #109 in Pressure Washer Accessories
Brand Name	AR ANNOVI REVERBERI
Customer Reviews	4.5 4.5 out of 5 stars (603)
Exterior Finish	Brass
Global Trade Identification Number	00043951097477, 00192216407091, 00795294931610, 00851243103207
Included Components	Unloader
Inlet Connection Size	0.38 inches
Inlet Connection Type	Female Pipe Thread
Item Dimensions	8 x 3 x 4 inches
Item Type Name	VRT3-310 Unloader
Item Weight	16 ounces
Manufacturer	AR North America
Manufacturer Part Number	VRT3-310
Manufacturer Warranty Description	1 year warranty
Material Type	Brass
Maximum Pressure	4500 psi
Model Number	VRT3-310
Number of Items	1
Number of Pieces	1
Number of Ports	2
Outlet Connection Size	0.38 inches
Outlet Connection Type	FNPT
Size	Black Spring
Thread Size	3/8 inches
Thread Type	Female Pipe Thread
UPC	795294931610 043967293726 688957776942 192216103207 192216407091 851243103207 044919297724 043951097477
Unit Count	1 Count
Valve Type	Unloader

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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€ 117.70

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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