EFIELD Universal Washing Machine Outlet Box - Durable Pex Inlet

Our review of the EFIELD Universal Washing Machine Outlet Box finds it best suited for plumbers, remodelers and DIYers who want a reliable, compact wall box that simplifies washer hookups. The single biggest reason to buy is the integrated 1/4-turn hot and cold ball valves with stainless steel water hammer arrestors already installed, which eliminates a separate step and reduces vibration and hammer noise. At 9 in x 7.8 in with a 4.2 in depth and a snap-on frame for up to 1 in drywall, it arrives ready for a straightforward installation in typical laundry wall cavities.

Key Features

• Direct manufacturer sourcing: Supplied straight from a major PEX systems manufacturer, the box offers components that match common PEX plumbing standards for better compatibility on site.
• Pex crimp inlet: The 1/2 in PEX crimp inlet connection simplifies connection to PEX runs and reduces the need for adapters when tying into modern plumbing.
• MHT outlet connections: 3/4 in MHT outlet connections provide the standard threaded connection used by most washing machine hoses for a secure fit.
• Built-in hammer arrestors: Stainless steel water hammer arrestors are preinstalled to cut down on shock and noise without additional parts.
• Compact frame size: Measuring 9 in x 7.8 in with a 4.2 in depth and a snap-on frame, it accommodates up to 1 in drywall and fits common stud bay layouts.
• Quarter-turn valves: The 1/4-turn hot and cold ball valves make shutoff quick and reliable for servicing or replacements.

Who It's For

This washing machine outlet box works well for professional plumbers and experienced DIYers who use PEX piping and want a tidy, integrated solution that reduces on-site assembly. It is particularly useful when you prefer preinstalled stainless steel water hammer arrestors and quarter-turn valves to avoid sourcing multiple components.

Those who should look elsewhere include installers who require alternative inlet sizes, non-PEX supply types, or have nonstandard wall depths beyond the 4.2 in depth. If you need specialized commercial fittings or a recessed box with different outlet arrangements, a different model may be a better fit.

Pros & Cons

Pros

• Preinstalled stainless steel water hammer arrestors reduce noise and system shock without extra parts.
• 1/2 in PEX crimp inlet and 3/4 in MHT outlets match common plumbing and washer hose standards for straightforward hookups.
• Snap-on frame that accepts up to 1 in drywall and compact dimensions make wall placement and finishing easier.
• 1/4-turn ball valves provide quick shutoff during maintenance.

Cons

• Some user feedback shows mixed opinions on leak resistance, so careful installation and proper crimping technique are important.
• Limited to the specific inlet/outlet configuration; not ideal if different connector sizes are required.

Specifications

Brand	EFIELD
Inlet connection	1/2 in PEX crimp
Outlet connections	3/4 in MHT
Valves	1/4-turn hot and cold ball valves
Water hammer arrestor	Stainless steel, preinstalled
Overall size	9 in x 7.8 in
Depth / drywall frame	4.2 in depth, snap-on frame up to 1 in drywall

Our Verdict

The EFIELD Universal Washing Machine Outlet Box is a practical, value-oriented choice for installations that use PEX supply lines and standard washer hose fittings. Its preinstalled stainless steel water hammer arrestors and quarter-turn valves save time and reduce parts inventory, making it a solid pick for tradespeople and capable DIYers who want a tidy, dependable laundry outlet box.

Frequently Asked Questions

Does it work with PEX supply lines?
Yes, it features a 1/2 in PEX crimp inlet designed for direct connection to PEX runs.

Are water hammer arrestors included?
Yes, stainless steel water hammer arrestors are installed at the factory to reduce shock and noise.

Will it fit common drywall thickness?
Yes, the snap-on frame accommodates up to 1 in drywall and the box measures 4.2 in deep for standard wall cavities.