what are the dimensions? This seems to be a bit large

There are (2) dimensions. Inner seal is a 3 inch diameter seal, which sits inside the basket. The second dimension is the overall "lip" which seals the inner seal of the basket; 3 1/4 inch diameter.

why can this plug not be shipped to a California address?

I ship to California addresses. I live in California

Does this stopper fit down into the drain, or at the top of the drain so that it sticks out into the basin of the sink?

Inner flange diameter - 3 1/8". Outer diameter - barely greater than 3 1/4" (not a full 3 5/16"). It sticks up into the basin of my sink, and barely provides a seal so that the most minor bump to it results in a leak. The inner flange rests within the drain, but the out flange keeps it from resting down inside the drain.

Is this easier to pull out than the plastic stopper?

I have no problem pulling out the InSinkErator STP-SS what-so-ever. If you are having a problem breaking the suction, you can simply open drain function with this stopper.

Stp Mtblk Matte Black | Desertcart UK

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Description

🖤 Stop the drip, style your sink – Matte Black mastery!

SEAMLESS SINK FIT - Precision engineered to fit all InSinkErator disposals and standard 3.5-inch kitchen drains for effortless installation.
DURABLE EASY TO USE - Crafted from high-quality plastic for long-lasting performance, this stopper is simple to insert and remove—no hassle, no mess.
TRUSTED AMERICAN BRAND - Backed by America’s #1 disposal brand, ensuring reliability and premium quality you can count on every day.
SLEEK MATTE BLACK STYLE - Elevate your kitchen’s aesthetic with a modern matte black finish that complements any contemporary sink design.
COMPLETE KITCHEN COORDINATION - Pairs perfectly with InSinkErator’s decorative flanges and air switch buttons for a cohesive, stylish kitchen upgrade.

The InSinkErator STP-MTBLK Matte Black Sink Stopper is a precision-fit accessory designed for all InSinkErator garbage disposals and standard 3.5-inch kitchen drains. Made from durable plastic with a sleek matte black finish, it offers both functional water and debris blocking and a stylish upgrade to your kitchen sink. Trusted as part of America’s leading disposal brand, it ensures seamless compatibility and lasting quality.

Specifications

ASIN	B002I631IW
Best Sellers Rank	#86,979 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Garbage Disposal Parts
Brand	InSinkErator
Brand Name	InSinkErator
Color	Matte Black
Colour	Matte Black
Customer Reviews	4.6 out of 5 stars 8,457 Reviews
Global Trade Identification Number	00050375009528
Included Components	Sink Stopper
Item Type Name	Fits Standard Kitchen Drain Size of 3 1/2 Inch Diameter
Manufacturer	InSinkErator
Material	Plastic
Material Type	Plastic
Number of Items	1
UPC	050375009528
Unit Count	1 Count

Reviews

P**S

Beware!

19.12.2022

C**N

commande annexe a celle la.

j'avais commandé un broyeur Badger 5 de Sink Erator,pour des raisons que j'ignore on me mène en bateau avec des explications qui ne tiennent pas la route du style adresse non valable, voltage non valable. Si on vend un article en Europe et qu'on vient me dire que le voltage est non conforme, la je pense que l'on me prend pour un imbécile. donc plus de commentaires. Merci. S. Bonvin

12.03.2016

P**Y

Expensive but necessary piece of plastic

12.01.2019

J**E

Works perfectly!

20.01.2026

A**A

Passt ganz genau

Ich bin sehr zufrieden

15.07.2025

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