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Fi Series 2 Compatible Collar Adapter

Fi Series 2 Compatible Collar Adapter

PriceFrom $23.00

Turn any collar into a Fi Series 2 compatible collar!


-Engineered to work with the Fi Series 2 attachment system for a sleek and secure fit
-Precision 3D printed using strong, light, and durable carbon-reinforced nylon
-Compatible with nearly every style, including martingale, leather and biothane dog collars
-Adjustable and secure collar attachment using two 12mm double looped velcro straps with sliders
-Fits collars as narrow as 5/8" and as wide as 2"
-Works with the Fi 2 charging base - hassle free!

**NEW** Upgrade to silicone straps for $3 (Standard size only)

-Perfect for smaller pups who prefer a thinner collar and larger pups who want to keep all their gear on one collar. 
-Updated design for extra security and a sleeker profile


-One Year Free Replacement Warranty
-Free domestic shipping on orders over $40. Expedited USPS shipping upgrades available at check-out. 
-Please allow 5-7 day processing time prior to shipping. We make these in small batches to reduce waste and test each adapter to ensure the highest quality. 
-Proudly designed and manufactured in Sedro-Woolley, WA USA using materials also made in the USA.
-Listing is for the adapter unit only and does not include a Fi tracker or dog collar


Sizing the adapters for your collar:
-For collars 5/8" to 1.5" wide, choose Standard
-For collars up to 2" wide, choose Large
Check out our other listings for extra small and round collar Fi Series 2 collar adapters. 


Engineered in-house, precision 3D printed and field-tested for a secure and comfortable fit. We were inspired to design these Fi adapter clips when we discovered that standard 1" Fi collars were just too big for our small dog, and Fi collar pouches too bulky. Now our chiweenie (and his similarly sized and big dog friends) rock their Fi trackers in comfort, both day and night. 


**Important - this product is designed for the Fi Series 1 & 2 trackers. Please see our other listing for the Fi Series 3 compatible adapter.

  • We perform extensive testing on our products and inspect every set of Fi compatible clips to ensure reliabilty. If your clips break during normal use, we want to know about it and will set you replacement set of clips to you for free.

    See package insert for details or contact us at

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