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Fi-compatible replacement collars (collar only) for Fi Series 3 & 3+ receivers. Built for dogs that never slow down. From trail runs to lake swims to everyday walks, LupinePet Fi-compatible dog collars are engineered for comfort, durability, and secure GPS tracking performance. LupinePet’s Fi collar fits Fi Series 3 & 3+. Collars available in ¾” & 1" wide with sizes from 11.5” to 32”, for small, medium, large and extra large dogs. Need a larger size? Let us know, we may be able to help! Strong, durable and adventure-ready, these collars are designed to keep up with active dogs wherever they roam. Our premium-grade products draw inspiration from the durable components found in climbing and hiking gear, where strength and integrity matter most. Seen here in our popular limited-edition MicroBatch - get them while they last! Please Note: - This item is the collar only. Learn more about Fi systems here. - These items are custom made to order, please allow 1-2 days extra for production before shipment of your item. - Because this item is custom made to order, it is a Final Sale Item. Although not eligible for return or exchange, it is covered under our Even-if-Chewed, Guarantee!
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2026
$42.60