Is this item 2 inch x 1-1/2 inch INSIDE diameter or OUTSIDE DIAMETER???

NEITHER. One end is sized to correctly fit over the outside diameter of 2 inch PVC pipe, and the other end is sized to correctly fit over the outside diameter of 1-1/2 inch PVC pipe. The sizes given are the INSIDE DIAMETERS of the PIPES. These are plumbing fittings, folks. That's how the plumbing world works.

Why do so many reviewers clearly not understand that the given sizes are the nominal sizes of the pipes that fit this fitting?

Because there are no accompanying dimensioned diagrams. Not everyone knows the origins of sizing pipes...we need Inside diameter and outside diameters measurements on printed pix.

What are the actual IDs of this part? The reviews indicate it’s marked incorrectly.

The reviewers are wrong because they don't understand how these things are sized. One end's ID is sized to correctly fit the OD of 2" ID Schedule 40 PVC pipe. This end is, therefore, 2.375" (2-3/8") ID, as it should be. The other end's ID is sized to correctly fit the OD of 1-1/2" ID Schedule 40 PVC pipe. Therefore, this end's ID is 1.875" (1-7/8") ID, also as it should be.

Is joint compound or Teflon tape needed when using this to join galvanized nipple with pvc trap?

No, you don't need to use any joint compound or Teflon tape.

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Fernco 1056-215 Cast Iron, Plastic and Steel Pipe Flexible Coupling Connector Sewer and Drain Coupler Adapter 2" x 1.5" Black

Fernco 1056-215 Cast Iron, Plastic and Steel Pipe Flexible Coupling Connector Sewer and Drain Coupler Adapter 2" x 1.5" Black

Product ID: 9037393

Details

Brand
Fernco
Color
Black
Connector Type
Reducing
Exterior Finish
Stainless
Item Weight
0.05 Pounds
Item dimensions L x W x H
3 x 3 x 4

🔧Flexible 2" to 1.5" pipe fit

🛡️Chemical & sewer gas resistant

🇺🇸60+ years USA craftsmanship

4798 som

Duties & taxes included

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Connect with confidence — the flexible coupling that never quits!

QUICK NO MESS INSTALLATION - Forget glues and primers—install in minutes with hassle-free clamping.
TRUSTED BY PROS HOMEOWNERS - Preferred by plumbers and municipalities worldwide for durable, reliable performance.
LEAK PROOF CHEMICAL RESISTANT - Engineered elastomeric PVC and stainless steel bands ensure zero leaks and resist harsh sewer gases.
SEAMLESS MULTI MATERIAL CONNECTION - Effortlessly links cast iron, plastic, steel & copper pipes with precision fit.
BUILT TO LAST WITH AMERICAN CRAFTSMANSHIP - Over six decades of manufacturing excellence guarantee unmatched durability and quality.

The Fernco 1056-215 is a robust 2" x 1.5" flexible coupling adapter designed to connect cast iron, plastic, steel, and copper pipes in sewer and drain systems. Made from durable elastomeric PVC with stainless steel bands, it offers a leak-proof, chemical-resistant seal without messy adhesives. Rated for above and below ground use with a max test pressure of 4.3 PSI, this USA-made coupling delivers trusted, long-lasting performance favored by professionals and DIYers alike.

Specifications

ASIN	B00077PW40
Best Sellers Rank	#203,364 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14,120 in Fittings
Brand Name	Fernco
Color	Black
Connector Type	Reducing Coupling
Customer Reviews	4.5 4.5 out of 5 stars (279)
Exterior Finish	Stainless Steel
Global Trade Identification Number	00018578000049
Included Components	Fernco P1056-215 Flexible PVC Pipe Coupling
Item Dimensions	3 x 3 x 4 inches
Item Type Name	Cast Iron, Plastic and Steel Pipe Flexible Coupling Connector Sewer and Drain Coupler Adapter
Item Weight	0.05 Pounds
Manufacturer	Fernco Inc.
Manufacturer Part Number	P1056-215
Manufacturer Warranty Description	Warranty
Material Type	Polyvinyl Chloride, Stainless Steel
Model Number	P1056-215
Number of Pieces	1
Size	2" x 1-1/2"
Thread Size	2 inch
UPC	018578000049
Unit Count	1.0 Count

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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4798 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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