Westbrass A400-1-07 1-1/2 in OD P-Trap with High Box Flange - Satin

In this review the Westbrass A400-1-07 P-trap is evaluated for homeowners and installers who need a reliable, attractive drain assembly for a bathroom or kitchen sink. The bottom line: this is a straightforward, well-made 1-1/2 in OD P-trap with a high box flange that simplifies installation and matches common fixture finishes. Reviewers will appreciate the solid 17 gauge brass tubing and included slip joint nuts that make replacements or new installs efficient while keeping a clean satin nickel appearance.

Key Features

• Standard P-trap with High Box Flange: The high box flange provides a tidy transition from tailpiece to trap body and helps conceal the connection behind a vanity or wall box.
• 1-1/2 in x 1-1/2 in sizing: Fits standard sink drains and common 1-1/2 in waste lines for broad compatibility in bathrooms and some kitchens.
• Approximately 11-1/2 in neck-to-tailpiece length: The 11-1/2 in reach from center of the neck to the end of the tailpiece gives installers room to align the trap with existing drain locations.
• 17 gauge brass tubing: Robust brass construction resists deformation and offers longevity compared with thinner materials.
• Slip joint nuts included: Supplied lock nuts and slip joint hardware speed up installation and reduce the need to source extra parts.

Who It's For

This trap is best for homeowners, plumbers, and remodelers replacing a standard 1-1/2 in sink trap or finishing new sink installations where a durable metal trap is preferred over plastic. The satin nickel finish makes it a good match for contemporary fixtures and vanities where appearance matters as well as function.

Those needing specialty traps, nonstandard drain diameters, or integrated trap assemblies with built-in trap seals should look elsewhere. Also, if a project requires a compact or decorative exposed trap different from the high box flange style, this model may not be ideal.

Pros & Cons

Pros

• Solid 17 gauge brass offers durability and a weightier feel than plastic alternatives.
• Included slip joint nuts and brass lock nuts make installation quicker and reduce parts hunting.
• The satin nickel finish complements many modern fixtures and conceals fingerprints better than polished surfaces.
• The 11-1/2 in neck-to-tailpiece length provides installation flexibility for offset drains.

Cons

• Metal construction means a higher price and slightly more visible weight than economy plastic traps.
• The style is a standard P-trap with a high box flange and may not suit decorative exposed-pipe installations.

Specifications

Model	Westbrass A400-1-07
Trap type	P-trap with High Box Flange
Connection size	1-1/2 in x 1-1/2 in
Neck to tailpiece	Approximately 11-1/2 in
Material	17 gauge brass tubing
Finish	Satin Nickel
Includes	Slip joint nuts and brass lock nuts

Our Verdict

The Westbrass A400-1-07 is a sensible choice for anyone who wants a reliable metal sink trap that looks good and installs easily. Its 17 gauge brass construction and included slip joint hardware make it a durable, practical upgrade from basic plastic traps, and the satin nickel finish keeps the installation visually cohesive with contemporary fixtures. It offers solid value where longevity and appearance matter more than minimal cost.

Frequently Asked Questions

Will this trap fit most sink drains?
Yes, the 1-1/2 in x 1-1/2 in sizing is the common standard for many bathroom sinks and readily adapts to typical waste lines.

Is hardware included for installation?
Yes, the trap ships with slip joint nuts and brass lock nuts to simplify connection to the tailpiece and J-bend.

Can this be used under a kitchen sink?
It can be used where a 1-1/2 in drain is appropriate, though many kitchen sinks use 1-1/4 in or larger trap sizes so verify your drain size before buying.