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emerald and coral BioThane waterproof coupler with matte black hardware
emerald and coral BioThane waterproof coupler hardware in matte black
teal and deep sea blue couple hardware in solid brass
deep sea blue and teal BioThane waterproof couple with solid brass hardware
Biothane Waterproof Coupler
Biothane Waterproof Coupler

Biothane Waterproof Coupler

Hardware Finish

Walk multiple dogs with our NEW coupler! Simply clip your leash (or a matching leash from our shop) onto the end of the coupler! This coupler is 3/4" wide and comes in 12", 18", and 24".  Our durable BioThane® coupler is made from genuine 520 standard BioThane®. In addition, it is odor-proof and water-resistant, and above all - made to last. The vibrant colors are eye-catching, on-trend, and beautiful for both you & your four-legged friend.

Due to lighting and differences in monitors, actual colors may vary slightly from what appears online.

Our full Disclaimer/Liability Policy is available in our FAQ.

Please note: If you order a two-tone coupler, it is considered custom & therefore we cannot accept returns or exchanges. We can accept returns/exchanges on the coupler if you choose one color. Please choose colors and lengths carefully with this in mind! If you have any questions regarding colors/length choices, send us a message and we'll do our best to help!


• Genuine Beta 520 Standard BioThane®

• Machine riveted

• O-ring to attach your leash

• Trigger Snap

• Solid brass and Matte Black Zinc Alloy hardware options


• Made in the USA with love


The lengths listed are measured from end to end. Please keep this in mind when deciding which length to get!

• Width 3/4"

• Length options vary (12", 18", 24")


We recommend handwashing your Biothane gear with mild soap and water and drying it with a soft cloth. Please keep in mind that brass hardware will tarnish (patina) over time, regularly polishing/cleaning the hardware will minimize tarnishing. Our gold (brass plated) and matte black hardware can show wear and tear over time, however, this is normal and does not affect the integrity of the hardware. To clean the brass plated and matte black hardware, we recommend washing with mild soap and water and drying with a soft cloth.

Important Note: Please make sure to always thoroughly dry all hardware after use in any water, especially salt water. This will help to prevent the hardware from rusting.

While Biothane is incredibly versatile and repels MOST of the dirt and grime it comes across, please note that it is not completely stain-proof in all circumstances. Regular cleaning is recommended to keep your Biothane gear looking new.

Why Biothane?

We only use Genuine BioThane® on our leashes and collars. BioThane is a Polymer coated webbing that is durable, waterproof, and easy to clean. BioThane® rinses clean in seconds, will not mold or mildew, and will not absorb odors. BioThane® is manufactured in the USA.

Biothane Waterproof Coupler

$25.00 USD

Customer Reviews

Based on 8 reviews
Carlotta B
Works great and looks great on my two Grea...

Works great and looks great on my two Great Danes!

Izaiah M
this is five words long

this is five words long

Florence M
Great quality and arrived on time!

Great quality and arrived on time!

Moriah J
Loved this product it was perfect for my p...

Loved this product it was perfect for my puppies

Teresa M
This is the best coupler I have ever used!...

This is the best coupler I have ever used! Very well made. I contacted the seller regarding customization and I was accommodated. Incredibly fast shipping. Thank you so much