Do you need a plumber to install this? How do you install it?

I did not need a plumber to install this, which is not surprising since I also did I need a plumber to install my garbage disposal or the 55 gallon water heater in my basement.

So, is the diameter 3 1/8" or 3 1/2"? I see both answers, which doesn't make sense since there's not a size choice option.

It's 3 1/8. Both sizes will fit. I found a far better replacement at one of the large home supply stores.It a heavy plastic with multiple holes for water drainage. It acts the same as the Insinkerator, but is easy to clean,keeps the sound low, and will not break, or smell. Cost is around $4.00. I no longer use the Insinkerator.

will this work on my insinkerator #777ss-1 with out taking it apart?

This product is designed to simply pop into your garburetor in order to save you the trouble of taking apart your garburetor. After you cut off the existing rubber baffle in your garburetor with a sharp knife, simply push in this product and it should stay in. I have an old Sears Kenmore garburetor and this baffle worked fine. If the opening of your garburetor is 3 1/4'' to 3 5/16'', this baffle should work fine.

Does the image represent the correct way to install this baffle?

This image shows the underneath side of the product. The actual baffle is imprinted "THIS SIDE DOWN" on this side. You can just barely see "SIDE" and "DOWN" on this picture if you enlarge it.

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Description

🔇 Keep it quiet, clean, and effortlessly sleek!

BUILT TO LAST - Premium rubber resists corrosion, oil, and heat for long-term durability.
EFFORTLESS SNAP ON FIT - Install or replace your splash guard in seconds—no tools needed.
WHISPER QUIET OPERATION - Slash kitchen noise by up to 70% and enjoy peaceful meal prep.
HYGIENIC EASY TO CLEAN - Dishwasher safe and removable for quick cleaning and fresh use every time.
VERSATILE SPLASH PROTECTION - Perfect for kitchens, bathrooms, offices, and more—keep every sink splash-free.

The InSinkErator QCB-AM Quiet Sink Collar is a high-quality, durable rubber splash guard designed for Evolution Series disposals. It reduces noise by up to 70%, installs easily without tools, and fits sinks with a 3.25-inch diameter. Its corrosion, oil, and heat-resistant material ensures long-lasting performance, while being dishwasher safe for easy maintenance.

Specifications

Brand	InSinkErator
Color	Replacement for Sink Baffle
Material	Rubber
Size	3.25-Inch Diameter
Product Dimensions	0.5"D x 0.51"W x 1.27"H
Style	American
Installation Type	Top-Mount
Finish Type	Rubber
Shape	Round
Drain Type	Grid
Item Weight	0.06 Pounds
Product Care Instructions	Dishwasher Safe
Hole Count	1
UPC	050375008217
Global Trade Identification Number	00050375008217
Manufacturer	InSinkErator
Part Number	QCB-AM
Item Weight	0.96 ounces
Item model number	QCB-AM
Is Discontinued By Manufacturer	No
Finish	Rubber
Item Package Quantity	1
Number Of Pieces	1
Cutting Diameter	3.25 Inches
Included Components	Sink Baffle
Batteries Included?	No
Batteries Required?	No
Assembled Diameter	3.25 Inches

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