Westbrass A400-1-05 1-1/2 in OD P-Trap with High Box Flange - Polished

In this review the Westbrass A400-1-05 P-trap is assessed for homeowners and installers who need a reliable, attractive drain trap for bathroom or kitchen sinks. The bottom line: this model is best for anyone seeking a solid brass, ready-to-install P-trap with a high box flange and polished nickel finish, because its 17 gauge brass tubing and slip joint nuts make fitting straightforward while the finish complements most fixtures.

Key Features

• High box flange: provides a neat, raised escutcheon that helps conceal the wall outlet and creates a cleaner installation line.
• 1-1/2 in OD connections: standard sizing matches most sink tailpieces and waste outlets for easy compatibility during replacement or new installs.
• 17 gauge brass tubing: thicker brass construction resists deformation and holds up well to routine plumbing use compared with thinner materials.
• Approximately 11-1/2 in reach: the distance from the center of the neck to the end of the tailpiece gives flexibility for aligning with common trap arm positions.
• Slip joint nuts included: the lock nuts on the neck and J-bend make final assembly faster and reduce the need for additional fittings on site.

Who It's For

This P-trap is ideal for DIY homeowners updating a bathroom or kitchen sink who want a durable metal trap with a polished nickel look that coordinates with visible plumbing. It also suits professional plumbers working on remodels where a high box flange improves the finished appearance at the wall connection.

Those who need specialty sizes, unusual tailpiece configurations, or an integrated clean-out may want to look elsewhere, since this model is a standard 1-1/2 in OD P-trap designed for typical sink installations rather than bespoke plumbing systems.

Pros & Cons

Pros

• Solid 17 gauge brass construction offers durability and a premium feel compared with thinner traps.
• High box flange improves the installed appearance and helps cover imperfect wall cutouts.
• Slip joint nuts and brass lock nuts simplify installation and adjustments on site.
• Standard 1-1/2 in sizing and ~11-1/2 in reach make it compatible with most sinks.

Cons

• As a standard P-trap, it lacks specialty features like an integrated clean-out or nonstandard sizing for atypical installations.

Specifications

Brand	Westbrass
Model	A400-1-05
Connection size	1-1/2 in x 1-1/2 in
Material	17 gauge brass tubing
Finish	Polished Nickel
Length	Approximately 11-1/2 in from center of neck to tailpiece end
Fittings included	Slip joint nuts and brass lock nuts

Our Verdict

The Westbrass A400-1-05 is a sensible, good-value choice for typical sink installations where appearance and durability matter. Its 17 gauge brass construction, polished nickel finish, and included slip joint nuts make it easy to install and finish off a sink project neatly, so homeowners and contractors looking for a dependable standard P-trap will find it a practical pick.

Frequently Asked Questions

Will this P-trap fit a standard sink tailpiece?
Yes. The trap uses 1-1/2 in OD connections which match common sink tailpieces and waste outlets.

Does it include the nuts needed for installation?
Yes. Slip joint nuts and brass lock nuts for the neck and J-bend connections are included to simplify assembly.

Is the finish suitable for exposed plumbing?
The polished nickel finish is designed to complement visible fixtures and provide an attractive appearance for exposed trap installations.