Is the hammer arrester bypassed when the valve is open? It looks like the valve closes off flow to the arrester when open.

No. The hammer arrestor always directly connect the waterflow no matter the valve is on or off.

What is the size of the box? (It looks rectangular in photo)

Yes. It is rectangular, which is 7 "x5.5"

How much longer with the stainless hammer arresters work vs the copper?

We are assum the same. The stainless steel hammer can keep the apperance clean for longer time

Do these come in 5/8" cinch or crimp connection for 3/4" pex

Yes They come in both expansion pex a and in pex b (crimped)

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EFIELD Washing Machine Outlet Box with Center Drain with Brass 1/4 Turn Valves Installed, 1/2" Pex-a F1960 Expansion Fitting Connection x 3/4" MHT Connection, White, with Stainless Steel Arrestor

EFIELD Washing Machine Outlet Box with Center Drain with Brass 1/4 Turn Valves Installed, 1/2" Pex-a F1960 Expansion Fitting Connection x 3/4" MHT Connection, White, with Stainless Steel Arrestor

Product ID: 370093409

Details

Brand
EFIELD
Exterior Finish
Copper Steel
Inlet Connection Type
Cross Linked
Item dimensions L x W x H
8 x 8 x 3.5
Manufacturer
EFIELD
Material
Stainless

🔧1/2" PEX-A Expansion Inlet

🚿3/4" Male Hose Thread Outlet

🛠️Lead-Free 1/4-Turn Brass Valves

17938 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚿 Upgrade your laundry setup with silent strength and sleek efficiency!

DUAL DRAIN DESIGN - Central and side drain options maximize flexibility and prevent water buildup, keeping your laundry space pristine.
SILENT WATER HAMMER ARRESTORS - Stainless steel arrestors reduce water hammer noise by up to 90%, ensuring a peaceful home environment.
DURABLE LEAD FREE BRASS VALVES - Smooth 1/4-turn hot and cold ball valves crafted from lead-free brass for longevity and safety.
PRECISION ENGINEERED CONNECTIONS - Seamlessly fits PEX-A systems with 1/2" expansion inlet and 3/4" MHT outlet for hassle-free installation.
READY TO INSTALL WITH SUPPORT BRACKET - Includes pre-installed support bracket and faceplate cover for a clean, professional finish every time.

The EFIELD Washing Machine Outlet Box features robust 1/2" PEX-A expansion inlet and 3/4" MHT outlet connections, lead-free brass 1/4-turn valves, and stainless steel water hammer arrestors that reduce noise by 90%. Designed with both central and side drains, it includes a support bracket and faceplate cover for easy, professional installation. Perfect for modern laundry rooms seeking durability and quiet performance.

Specifications

ASIN	B0912KX7DW
Best Sellers Rank	#59,030 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #370 in Industrial Pipe Fittings
Brand	EFIELD
Brand Name	EFIELD
Connector Type	Threaded
Customer Reviews	4.5 out of 5 stars 163 Reviews
Exterior Finish	Copper,Stainless Steel
Exterior finish	Copper , Stainless Steel
Inlet Connection Size	0.5 Millimeters
Inlet Connection Type	Cross Linked Polyethylene
Inlet connection size	0.5 Millimeters
Inlet connection type	Cross Linked Polyethylene
Item Dimensions	20.3 x 20.3 x 8.9 centimeters
Item Weight	1.1 Kilograms
Item dimensions L x W x H	20.3 x 20.3 x 8.9 centimeters
Manufacturer	EFIELD
Manufacturer Part Number	mh
Material	Stainless Steel Brass
Material Type	Stainless Steel Brass
Model Number	mh
Number of Ports	2
Outlet Connection Size	0.75 Inches
Outlet Connection Type	MHT
Set Name	Washing Machine Outlet Box with Valves
Size	PEX-A Expansion
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	UPC
Thread Size	3/4 inch
Thread Type	Male Hose Thread
UPC	791689823140
Unit Count	1.0 Count
Valve Type	Ball Valve

Reviews

D**D

As described

27.09.2023

T**Y

Reduces that water hammer noise down by about 90%.

Excellent quality and craftsmanship with precise threading, and the valves work as smoothly as butter.

1.12.2025

A**R

Great look and good product

Excellent look, easy to install. Would recommend it…

19.02.2025

C**R

For Pex A Expansion - Works great.

Easy hookup with Pex A.

7.04.2026

G**Y

NOT for 1/2" PEX

Honestly just annoyed, connector is not for 1/2 or 3/4 Pex so the only thing I can use is the $10 box....

6.04.2023

J**I

Very basic

Low Quality

15.06.2025

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17938 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered 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 Kyrgyzstan.

Secure transaction

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