Are all garbage disposals interchangeable?

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Are all garbage disposals interchangeable?

No, just because they are all made to fit a 3.5-inch sinkhole doesn’t mean they are interchangeable. The reason is disposals use two kinds of mountings for installation; 3-bolt and EZ, the two is different.


If your existing disposal is using a 3-bolt mounting and the new one is EZ mount then you will need to remove the setup completely to install the new disposal.


If the new disposal is manufactured by the same company most likely they can be easily replaced but not always as all companies use both kinds of mountings.


Also depending on the size (dimensions) of the new disposal, you may want to change the position of the connecting pipes. This will add further complexity to replacement.


That being said, replacing a disposal with a new one is generally a simple task which you can do by yourself, I was just showing you the worst-case scenario.


Are all garbage disposals the same size?

Obviously, the question here is whether a garbage disposal fits all sinks, or, whether all of them fit a sink.


All standard kitchen drainage holes have a size of 3.5-inch diameter. All garbage disposals are made to fit this size.


Just in case the drainage hole size of your kitchen sink is different there are accessories you can buy to fit a disposal.


Zhejiang Rosun Kitchen & Bath Technology Co., Ltd. is a manufacture of quality garbage disposer and accessories since 1992 with a registered capital of USD 1.5 million. It’s located in Yuhuan, Zhejiang Province of China, covers areas of 75,347 sq. ft, owns 129,167 sq. ft of workshop with more than 200 experienced workers and staffs.


Rosun established Disposer laboratory with an independent R&D team, together with a complete production system from moulding, casting, precision machining, polishing and assemble workshop since it’s founded, HomeAid has provided professional OEM & ODM services for numerous customers overseas and domestic.



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We are a factory which specialized in garbage disposal & kitchen utensils, such as garbage disposal, sink strainer, bathtub and basin drain.

Our garbage disposal adopted advanced AC motor, which significantly lower the operation noise about 30 dBs than other garbage disposal on the USA market.

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As a professional manufacture, we do made-to-order manufacturing at a competitive price and good quality. We are supplier of many world-famous brands and provided professional OEM & ODM services.

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If you need item samples & catalogue, please email us without hesitation, it’s pleasure to serve you.

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Adam Liu

Sales Manager


Zhejiang Rosun Kitchen & Bath Technology Company

Address: Qinggang Industrial Cluster District, Yuhuan City, 317606, Zhejiang Province, China

Tel: +86-15968803981

Fax: +86-0571-87298697