What outside diameter pipe will these work on?

There for 6" pipe not sure if that's the inside diameter or outside. The are flexible can stretch a little.

Can you tell me what the inside diameter is?

Just under 6 inches. They are designed to fit 6 inch diameter PVC or iron.

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Fernco Inc. P1056-66 6-Inch Stock Coupling

Fernco Inc. P1056-66 6-Inch Stock Coupling

Product ID: 68404196

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Details

Size
6 inch
Material
Alloy Steel
Brand
Fernco
Colour
Black
Item dimensions L x W x H
23.5 x 23.5 x
Connector type
Coupling

🔧6-inch versatile coupling

⚙️robust alloy steel build

🛠️multi-material compatibility

Description

🔩 Connect with Confidence — The Last Coupling You'll Ever Need!

BUILT TO LAST - Crafted from durable alloy steel and cast iron for long-term reliability.
COMPACT YET MIGHTY - 6-inch size packs powerful performance in a sleek, space-saving design.
EFFORTLESS INSTALLATION - Designed for quick, hassle-free setup—get your project done faster.
CERTIFIED QUALITY ASSURANCE - PVC material certification ensures trusted plumbing standards.
UNIVERSAL FIT FOR EVERY JOB - Seamlessly connects cast iron, plastic, copper, steel, or lead pipes with ease.

The Fernco Inc. P1056-66 6-Inch Stock Coupling is a heavy-duty plumbing fitting engineered for versatile use across multiple pipe materials including cast iron, plastic, copper, steel, and lead. Weighing just over 1 kg and crafted from alloy steel and cast iron, it offers durability and ease of installation, certified for PVC compatibility, making it an essential, reliable choice for professional and DIY plumbing projects.

Specifications

Manufacturer	Fernco Inc.
Part Number	P1056-66
Product Dimensions	23.55 x 23.55 x 15.21 cm; 1.03 kg
Item model number	P1056-66
Size	6 inch
Colour	Black
Material	Alloy Steel, Cast Iron, Plastic
Item Package Quantity	1
Number of Pieces	1
Certification	PVC Material
Batteries included?	No
Batteries Required?	No
Item Weight	1.03 kg

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€ 96.77

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