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White plastic outlet box with brass valves and hammer arrester, 1/2 inch sweat connections

Water-tite

Water-tite 85708 washing machine outlet box with hammer arrester 1/2" sweat connection

SKU CH-QMM2-E0GW9

Provides secure washing machine water connections with integrated hammer arresters on 1/2 inch sweat fittings

  • Built-in hammer arrester prevents water-hammer damage
  • NSF 61-G certified brass meets safe-drinking-water standards
  • Federal Law 111-380 compliant for lead-free installation
  • UPC listed for code-approved plumbing systems
  • 1/2" sweat connections enable direct copper-pipe installation

Laundry outlet box with hammer arrester

The Water-tite 85708 provides a recessed mounting point for washing machine supply valves. It integrates a water hammer arrester to reduce pressure spikes that can damage piping. The unit is intended for residential laundry installations where code requires shock absorption.

UPC-listed brass valve with sweat connections

The assembly uses a 1/2 inch copper sweat inlet that must be soldered in place during rough-in. Compliance with UPC and NSF 61-G confirms the brass components meet drinking-water safety standards. Federal Law 111-380 compliance verifies lead-free construction for potable systems.

Recessed box with integrated faceplate

The box measures 5-3/4 inches wide by 4-7/8 inches high by 3-1/2 inches deep behind the wall. A larger 8-1/4 by 7-5/16 inch faceplate covers the opening and provides a finished appearance. No drain connection is included, so overflow protection must be planned separately.

How it compares

Measured against everything we stock in General Plumbing Parts & Tools, at today’s prices. Recalculated every night.

Price $71.99
Pricier than about 90% of the 135 comparable items (median $19.99).

Specifications

Product
Brand nameWATER-TITE

Questions about this item

Which Water-tite 85708 configuration should I choose for my washing machine hookup?

The 85708 is a single outlet box that includes a 1/2" sweat valve with integrated hammer arrester and locknut, so no separate version selection is required.

What does the built-in hammer arrester do once the box is installed?

It absorbs pressure spikes caused by sudden valve closure, reducing water hammer noise and protecting the supply piping.

What does the 1/2" sweat connection limit in practice?

It requires copper pipe with soldered joints, so installation is permanent and suited to rigid copper supply lines.

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