Allied Moulded P-181 FlexBox 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.16
Allied Moulded P-181 FlexBox 1-Gang Thermoplastic Residential Switch/Receptacle Box, 18 Cu. In.

Allied Moulded P-181 FlexBox 1-Gang Thermoplastic Residential Switch/Receptacle Box, 18 Cu. In.

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Model: P-181

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.16
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Allied Moulded P-181 FlexBox 1-Gang Thermoplastic Residential Switch/Receptacle Box

The Allied Moulded P-181 is a 1-gang residential switch/receptacle electrical box built from durable thermoplastic as part of the FlexBox® product line. Measuring 2-5/16-Inch x 3-3/4-Inch x 2-5/8-Inch with an 18-Cubic-Inch interior volume, this box gives electricians and contractors a lightweight, non-conductive enclosure sized for standard residential switch and receptacle installations. Thermoplastic construction resists corrosion and moisture better than traditional metal boxes, making the P-181 a practical choice for new construction and remodel wiring projects where a compact, single-gang device box is required.

Key Features

  • Compact Footprint: Overall dimensions of 2-5/16-Inch x 3-3/4-Inch x 2-5/8-Inch fit standard 1-gang wall openings for switches and receptacles.
  • Durable Construction: Molded thermoplastic body resists corrosion, moisture, and impact better than metal alternatives, extending service life in residential applications.
  • 1-Gang Configuration: Designed to house a single switch or receptacle device for straightforward residential wiring layouts.
  • 18-Cubic-Inch Capacity: Interior volume of 18 cubic inches provides adequate space for conductors, devices, and wire connections within code-driven box-fill calculations.
  • FlexBox® Series: Part of the Allied Moulded FlexBox® line of thermoplastic residential electrical boxes engineered for reliable device mounting.
  • Non-Conductive Material: Thermoplastic composition eliminates the grounding and corrosion concerns associated with metallic device boxes.

Technical Specifications

  • Series: FlexBox®
  • Gang Configuration: 1-Gang
  • Dimensions: 2-5/16-Inch x 3-3/4-Inch x 2-5/8-Inch
  • Interior Volume: 18-Cubic-Inch
  • Material: Thermoplastic
  • Application: Residential Switch/Receptacle Installations

Typical Applications

  • New Residential Construction Wiring
  • Residential Remodel and Retrofit Projects
  • Single-Gang Switch Installations
  • Single-Gang Receptacle Installations
  • Interior Wall Device Mounting

Why Allied Moulded?

Allied Moulded's FlexBox® thermoplastic device boxes give electrical professionals a corrosion-resistant, non-conductive alternative to metal boxes without sacrificing the 18-Cubic-Inch capacity needed for standard residential device installations. The compact 2-5/16-Inch x 3-3/4-Inch x 2-5/8-Inch 1-gang footprint of the P-181 makes it a dependable choice for switch and receptacle wiring in new construction and remodel work, backed by Allied Moulded's focus on durable, code-compliant electrical box design.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
ALM-20260924
Product Type:
Switch/Receptacle Box
Configuration:
1-Gang
Series:
FlexBox
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
Product Material:
Thermoplastic

Allied Moulded P-181 – Frequently Asked Questions

1) How many conductors can I get into an Allied Moulded P-181 box?
The P-181 gives you 18 cubic inches of interior volume, which is what you work your NEC box fill against. Every conductor, the device yoke, clamps and grounds all draw against that 18 cubic inches, so for a standard single switch or receptacle on 14 or 12 AWG residential wiring it leaves normal working room. Run your own fill calculation for the wire gauge and number of cables you are landing.
2) Will the P-181 fit a standard 1-gang wall opening?
Yes. The P-181 is a 1-gang device box measuring 2-5/16 x 3-3/4 x 2-5/8 inches, sized for standard single-gang switch and receptacle openings. The 2-5/8 inch dimension is the one to check against your stud bay depth and any insulation or blocking behind the wall.
3) Plastic or metal box for residential switch and receptacle work?
The P-181 is molded thermoplastic, so it is non-conductive and needs no bonding of the box itself, and it will not corrode in damp locations the way a steel box can. Metal is what you want where the wiring method requires a metallic raceway or armored cable to be bonded through the box, or where physical abuse is a concern. For NM cable in residential walls, the thermoplastic box is the normal choice.
4) Can I use the P-181 for a remodel or old-work installation?
Allied Moulded lists the P-181 for both new residential construction and remodel or retrofit wiring. Confirm the mounting style you need before ordering, since old-work openings need a box that clamps to the drywall rather than one nailed or screwed to a stud.
5) Is the P-181 part of a line I can standardize on across a building?
It is part of Allied Moulded's FlexBox line of thermoplastic residential device boxes, so a property manager or builder standardizing device boxes across units can stay within one family. The P-181 covers the single-gang switch and receptacle positions at 18 cubic inches.
6) What is the exact part number to order this Allied Moulded 1-gang box under?
Order it as Allied Moulded P-181. That is the manufacturer part number for the 18 cubic inch, 1-gang FlexBox thermoplastic switch and receptacle box.
How fast can I get the Allied Moulded P-181 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Allied Moulded P-181 come with a warranty?
Absolutely. The Allied Moulded P-181 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Allied Moulded P-181?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Allied Moulded P-181 from ZenSupply?
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