Westbrass A400-1-62 1-1/2 in P-Trap with High Box Flange - Matte Black

In this review the Westbrass A400-1-62 is evaluated for homeowners and professional plumbers who need a reliable, attractive P-trap for bathroom or kitchen sinks. The bottom line: this P-trap is for anyone who wants a sturdy, easy-to-install drain assembly with a high box flange and a matte black finish that matches modern fixtures. Its biggest selling point is the combination of 17 gauge brass tubing and slip joint connections that simplify installation while providing a durable trap for regular sink use.

Key Features

• High Box Flange: Provides a clean, finished look where the trap connects to wall outlet boxes and hides the rough-in for a neater installation.
• 1-1/2 in OD tubing: Matches standard sink drain openings so it integrates seamlessly with most bathroom and kitchen sink setups.
• 17 gauge brass construction: Thicker brass tubing adds durability and corrosion resistance compared with thinner materials, giving a longer service life.
• Approximately 11-1/2 in reach: The center-of-neck to tailpiece measurement offers ample length for common sink and trap arm layouts without excessive bending.
• Slip joint nuts included: Brass lock nuts on the neck and J-bend connections make assembly straightforward and reduce the need for additional fasteners.

Who It's For

This P-trap is best for homeowners renovating bathrooms or kitchens, DIYers who prefer a finish-matched drain component, and professional plumbers specifying a durable brass trap where appearance matters. The matte black finish complements modern and transitional fixtures, so it suits projects where the trap will be visible.

Those working on nonstandard commercial drains, custom plumbing with unusual offsets, or systems requiring larger than 1-1/2 in trap arms should look elsewhere. Also, buyers who need multiple connection adapters not listed should confirm compatibility before purchase.

Pros & Cons

Pros

• Durable 17 gauge brass construction resists corrosion and holds finish well in normal residential use.
• High box flange offers a tidy finish where the trap meets the wall, improving overall appearance.
• Slip joint nuts and J-bend connections make installation faster and reduce the need for specialty tools.

Cons

• Specified only for 1-1/2 in x 1-1/2 in applications, so it is not suitable for larger drain systems without adapters.

Specifications

Brand	Westbrass
Model	A400-1-62
Size	1-1/2 in x 1-1/2 in
Material	17 gauge brass tubing
Center-to-tailpiece	Approximately 11-1/2 in
Connections	Slip joint nuts with brass lock nuts
Finish	Matte black

Our Verdict

The Westbrass A400-1-62 is a practical choice for residential sink installations that need a durable, attractive P-trap with a high box flange. It is good value for buyers who want a ready-to-install brass trap in a matte black finish and who work within standard 1-1/2 in drain dimensions.

Frequently Asked Questions

Does this P-trap fit standard sink drains?
Yes, it is sized for 1-1/2 in OD sink drains and matches common bathroom and kitchen drain connections.

Are the slip joint nuts included?
Yes, slip joint nuts and brass lock nuts on the neck and J-bend are included to simplify installation.

Is the material corrosion resistant?
The trap uses 17 gauge brass tubing, which offers good corrosion resistance and durability for residential use.