---
product_id: 6149738
title: "InSinkErator Deep Sink 3.5 Extended Sink Flange, Polished Stainless Steel, FLG-SSLG"
brand: "insinkerator"
price: "€ 158.18"
currency: EUR
in_stock: true
reviews_count: 13
category: "In Sink Erator"
url: https://www.desertcart.com.cy/products/6149738-insinkerator-deep-sink-3-5-extended-sink-flange-polished-stainless
store_origin: CY
region: Cyprus
---

# Polished stainless steel finish Fits sinks 0.75-1.75 in thick Genuine American-made InSinkErator part InSinkErator Deep Sink 3.5 Extended Sink Flange, Polished Stainless Steel, FLG-SSLG

**Brand:** insinkerator
**Price:** € 158.18
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your sink game with the ultimate deep flange fit!

## Quick Answers

- **What is this?** InSinkErator Deep Sink 3.5 Extended Sink Flange, Polished Stainless Steel, FLG-SSLG by insinkerator
- **How much does it cost?** € 158.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/6149738-insinkerator-deep-sink-3-5-extended-sink-flange-polished-stainless)

## Best For

- insinkerator enthusiasts

## Why This Product

- Trusted insinkerator brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Compatibility:** Engineered to flawlessly connect with all InSinkErator disposers for hassle-free installation.
- • **Elevate Your Kitchen Setup:** Avoid leaks and damage with a flange that supports thicker sinks, protecting your investment and home.
- • **Extended Fit for Thick Sinks:** Designed specifically for sinks up to 1-3/4 inches thick, perfect for farmhouse and solid surface sinks.
- • **Trusted American Craftsmanship:** From the #1 US disposer brand, ensuring reliability and long-lasting performance.
- • **Premium Polished Stainless Steel:** Adds a sleek, durable, and corrosion-resistant finish that complements modern kitchen aesthetics.

## Overview

The InSinkErator Deep Sink 3.5 Extended Sink Flange is a polished stainless steel accessory designed to connect InSinkErator disposers to sinks between 3/4 inch and 1-3/4 inches thick. Engineered for thicker farmhouse, porcelain, or solid surface sinks, it ensures a secure, leak-free installation while adding a sleek finish. Backed by America's leading disposer brand and a 5-year in-home warranty, this flange combines durability, style, and trusted performance for the modern kitchen.

## Description

Product Description Genuine In-Sink-Erator Parts and Accessories Add a Touch of Elegance and Convenience.InSinkErator FLG-SSLG Deep Stainless Steel Sink Flange, Polished Stainless SteelDeep stainless steel sink flange for sinks up to 1-3/4-Inch thick Polished stainless steel finish For use with all InSinkErator disposers From the Manufacturer InSinkErator offers an entire range of accessories. They're made to the highest standards. And they are made to fit. So you know they'll work properly and install easily. Installations on thicker sinks, such as solid surface, porcelain, or cast iron, may require the use of alternate parts. Before removal of old disposer, measure existing mounting to assembly or measure sink thickness to determine whether an extended sink flange must be ordered. Please note that use of abrasive cleaners may harm this products finish.

Review: If you have a Farmhouse sink you need this and possibly more - If you are trying to install an Insinkerator disposal unit (or even another brand) and have a Farmhouse sink you’ll need this Deep Sink Flange. The standard flange is 1-1/2 inches deep and it does not leave enough room for the thickness of a farmhouse sink. Here is the rest of the story... I go to my daughter's house to install a new dishwasher and end up installing a new disposal unit as well. She has a farmhouse sink and the plumber (or the person impersonating a plumber) installed the disposal on a 1” thick farmhouse sink with the standard flange. He did not use the backup flange and just had the screws directly contacting her expensive sink so the whole disposal unit was putting pressure on three screws. It was leaking badly, stinking badly and damaged the cabinet. [see graphic with screw indents in the sink] If your sink is thicker than ¾ of an inch you need this Deep Sink Flange but if your sink is between ¾” and 1” insinkerator does not have the full solution. There are two screw lengths they provide with the standard flange that comes with the new disposal unit which are the H1 which is 1-1/2 inches and H2 which is 1-1/8 inches. Now if you install a 1” sink in the Deep Sink Flange which is 3-1/2 inches deep that means you have about 2-1/2 more inches of flange. Of course, there is the snap ring which does take up some depth but the problem is that Insinkerator does not have screws long enough for a 1” sink and definitely not a ¾ inch sink. My solution was to add a second [see graphic] backup flange (kind of a kludge) and if it does NOT hold, I will obtain some longer stainless-steel screws. They should be called Insinkerator H3 screws and would be a 5/16-18 [18 threads per inch] and 1-3/4 inches long and the end should be flat so as to have better pressure on the back flange. Last comment – yes at $50 this deep flange is a rip-off and if it came with the 1-3/4 screws it would still be a rip-off but at least you could install your disposal unit.
Review: Good purchase - I wanted it to match a nickel coloured faucet and it did the job. Very happy with the purchase.

## Features

- EXTENDED GARBAGE DISPOSAL FLANGE: This stainless steel Sink Flange is designed to connect your InSinkErator manufactured disposer to sinks with thicker materials For sinks 3/4 in up to 1-3/4 in thick.
- HIGHEST STANDARDS: Genuine InSinkErator parts & accessories add a touch of elegance & convenience. We offer an entire range of garbage disposal accessories held to our highest standards.
- AMERICA'S #1 DISPOSER BRAND: There are more American-built InSinkErator garbage disposals in US homes than all other brands combined. A full line of models means there's one right for every need and budget.
- FASTER, CLEANER, SMARTER: From meal prep to cleanup, InSinkErator helps make it fast & easy to keep your kitchen clean with our iconic appliances: garbage disposals & instant hot water dispensers.
- A HISTORY OF INNOVATION FOR THE SINK: We invented garbage disposals in 1927, & we're the world’s largest manufacturer of garbage disposals & instant hot water dispensers for home & commercial use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00084W5O2 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #5,997 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #29 in Faucet Flanges |
| Brand | InSinkErator |
| Color | Polished Stainless Steel |
| Customer Reviews | 4.2 4.2 out of 5 stars (4,174) |
| Date First Available | June 22, 2005 |
| Drain Type | Grid |
| Finish | Stainless Steel |
| Finish Type | Stainless Steel |
| Global Trade Identification Number | 00050375004448 |
| Installation Type | Undermount |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.52 ounces |
| Item model number | FLG-SSLG |
| Manufacturer | InSinkErator |
| Material | Stainless Steel |
| Part Number | FLG-SSLG |
| Product Care Instructions | Wipe with Dry Cloth |
| Product Dimensions | 40"D x 100"W x 50"H |
| Shape | Round |
| Size | 3.5 Inch |
| Style | American |
| UPC | 754262185493 050375004448 798256187285 |
| Warranty Description | 5-Year "We Come To You" In-Home Service Warranty |

## Product Details

- **Brand:** InSinkErator
- **Color:** Polished Stainless Steel
- **Material:** Stainless Steel
- **Product Dimensions:** 40"D x 100"W x 50"H
- **Size:** 3.5 Inch

## Images

![InSinkErator Deep Sink 3.5 Extended Sink Flange, Polished Stainless Steel, FLG-SSLG - Image 1](https://m.media-amazon.com/images/I/61oRepO4QvL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Would this flange work for a 6307 rohl allia fireclay sink?  and would it fit other disposals or only the insinkerator?**
A: This flange will work with the American Standard 1.25 hp from Costco. They have the very same mounting system as Insinkerator brand. I suspect any disposal made by Insinkerator will have the same mounting system and the flanges are likely standard. I took a chance on this one, and it fits the American Standard perfectly.

**Q: Will this work with a waste king l-8000 ez mount garbage disposal?**
A: It can be used with all InSinkErator disposers, but can't guarantee it will work with a different brand.

**Q: Does anyone know if this flange will work with a Whitehaus WH3018 sink and a Insinkerator Pro Compact disposal?**
A: I can not say for certain, but I would expect it will work. You did not say why you need the deep flange.I was unable to determine the thickness of your sink, but from the diagram I saw, it does not seem to be thick enough to need this flange. If the flange is too deep, you will need to get longer screws, as I did. See my review for details.

**Q: Where can I get an extra long screw with the right head shape to work with this product?**
A: Hi, our mounting screws are custom and are 1-1/2" long. If you need assistance, please reach us at https://support.insinkerator.com/app/ask. Thank you!

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you have a Farmhouse sink you need this and possibly more
*by M***. on April 11, 2024*

If you are trying to install an Insinkerator disposal unit (or even another brand) and have a Farmhouse sink you’ll need this Deep Sink Flange. The standard flange is 1-1/2 inches deep and it does not leave enough room for the thickness of a farmhouse sink. Here is the rest of the story... I go to my daughter's house to install a new dishwasher and end up installing a new disposal unit as well. She has a farmhouse sink and the plumber (or the person impersonating a plumber) installed the disposal on a 1” thick farmhouse sink with the standard flange. He did not use the backup flange and just had the screws directly contacting her expensive sink so the whole disposal unit was putting pressure on three screws. It was leaking badly, stinking badly and damaged the cabinet. [see graphic with screw indents in the sink] If your sink is thicker than ¾ of an inch you need this Deep Sink Flange but if your sink is between ¾” and 1” insinkerator does not have the full solution. There are two screw lengths they provide with the standard flange that comes with the new disposal unit which are the H1 which is 1-1/2 inches and H2 which is 1-1/8 inches. Now if you install a 1” sink in the Deep Sink Flange which is 3-1/2 inches deep that means you have about 2-1/2 more inches of flange. Of course, there is the snap ring which does take up some depth but the problem is that Insinkerator does not have screws long enough for a 1” sink and definitely not a ¾ inch sink. My solution was to add a second [see graphic] backup flange (kind of a kludge) and if it does NOT hold, I will obtain some longer stainless-steel screws. They should be called Insinkerator H3 screws and would be a 5/16-18 [18 threads per inch] and 1-3/4 inches long and the end should be flat so as to have better pressure on the back flange. Last comment – yes at $50 this deep flange is a rip-off and if it came with the 1-3/4 screws it would still be a rip-off but at least you could install your disposal unit.

### ⭐⭐⭐⭐⭐ Good purchase
*by N***. on December 27, 2025*

I wanted it to match a nickel coloured faucet and it did the job. Very happy with the purchase.

### ⭐⭐⭐⭐⭐ Nice product
*by S***2 on November 5, 2025*

Looks great; perfect match to my faucet

## Frequently Bought Together

- InSinkErator FLG-SSLG Deep 3.5 Extended Sink Flange, Polished Stainless Steel
- INSINKERATOR Garbage Disposal EZ Connect 3-Foot Power Cord for EZ Connect Power and Advanced Series Continuous Feed Food Waste Disposer Models, CRD-EZ
- InSinkErator EVOLUTION 0.75HP 3/4 HP, Advanced Series EZ Connect Continuous Feed Food Waste Garbage Disposal, Gray

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-23*