--- product_id: 176156431 title: "FieldTrainer 425XS Add-A-Dog Collar Only, Waterproof | Compatible with FieldTrainer 425XS/425S, DryTek Waterproof to 25 Ft, Fits Dogs 8 Lb+, Necks 5-22 In." brand: "sportdog" price: "$260.75" currency: USD in_stock: true reviews_count: 9 url: https://www.desertcart.us/products/176156431-fieldtrainer-425xs-add-a-dog-collar-only-waterproof-compatible-fieldtrainer store_origin: US region: United States of America --- # 2-hour quick recharge Waterproof to 25 ft Fits necks 5-22 inches FieldTrainer 425XS Add-A-Dog Collar Only, Waterproof | Compatible with FieldTrainer 425XS/425S, DryTek Waterproof to 25 Ft, Fits Dogs 8 Lb+, Necks 5-22 In. **Brand:** sportdog **Price:** $260.75 **Availability:** ✅ In Stock ## Summary > 🐾 Train smarter, not harder—because your dog deserves the best. ## Quick Answers - **What is this?** FieldTrainer 425XS Add-A-Dog Collar Only, Waterproof | Compatible with FieldTrainer 425XS/425S, DryTek Waterproof to 25 Ft, Fits Dogs 8 Lb+, Necks 5-22 In. by sportdog - **How much does it cost?** $260.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/176156431-fieldtrainer-425xs-add-a-dog-collar-only-waterproof-compatible-fieldtrainer) ## Best For - sportdog enthusiasts ## Why This Product - Trusted sportdog brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dive-Ready Durability:** DryTek waterproof technology lets your dog train through rain, mud, or even a swim—up to 25 feet deep. - • **Lightning-Fast Recharge:** Get back to training in just 2 hours with a rechargeable lithium-ion battery and never miss a session. - • **Stay Ahead with Smart Alerts:** Low battery indicator keeps you informed, so your training never gets interrupted unexpectedly. - • **Expand Your Pack Effortlessly:** Add another collar seamlessly to your existing FieldTrainer system—train multiple dogs without missing a beat. - • **Built for the Stubborn & Strong:** Designed specifically for dogs 8 lbs and up, perfect for those who need that extra training edge. ## Overview The SportDOG FieldTrainer 425XS Add-A-Dog Collar Receiver is a waterproof, rechargeable training collar compatible with the 425XS/425S systems. Designed for dogs 8 lbs and up with neck sizes 5-22 inches, it features DryTek technology for submersion up to 25 feet and a quick 2-hour lithium-ion battery recharge, making it ideal for expanding your training setup or replacing an old collar. ## Description The Collar Receiver for FieldTrainer 425XS Stubborn Dog Remote Trainer. Add another dog to your current SportDOG Brand electronic training collar system or replace a shock Collar Receiver with the SDR-ASX Add-A-Dog Receiver Collar. ## Features - Collar Receiver only, for stubborn dogs; expand your current system or replace an old shock collar - Compatible with the SportDOG Brand FieldTrainer 425XS (SD-425XS), 425S (SD-425S) - Waterproof and submersible to 25 feet using DryTek technology - Fits dogs 8 pounds or larger with neck sizes 5"-22" - Rechargeable lithium-ion battery with 2-hour quick charge; features a low battery indicator to let you know when to charge ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07XCXQF2H | | Batteries | 1 Lithium Ion batteries required. (included) | | Best Sellers Rank | #449 in Electronic Training Collars | | Date First Available | September 13, 2019 | | Item Model Number | SDR-AXS | | Manufacturer | Radio Systems Corporation | | Product Dimensions | 9 x 5 x 7 inches; 11.2 ounces | ## Product Details - **Brand:** SportDOG - **Color:** Red - **Item Display Dimensions:** 3.13 inches - **Material:** Plastic - **Pattern:** Solid ## Images ![FieldTrainer 425XS Add-A-Dog Collar Only, Waterproof | Compatible with FieldTrainer 425XS/425S, DryTek Waterproof to 25 Ft, Fits Dogs 8 Lb+, Necks 5-22 In. - Image 1](https://m.media-amazon.com/images/I/61G7cl4jrZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works! *by on Reviewed in the United States October 10, 2025* I purchased this to train the pups to stay in the yard as I walk with them and/or to retrieve. I quickly trained my pups' obedience and shortened the learning curve on a few tricks. ### ⭐⭐⭐⭐⭐ Durable *by on Reviewed in the United States November 6, 2025* Totally worth every penny! very easy to connect to the add a collar option. I now have 2 collars on 1 remote. Very easy to control durable with multiple shock settings. ### ⭐⭐⭐⭐⭐ Dog *by on Reviewed in the United States August 4, 2025* Very work ## Frequently Bought Together - SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock - SportDOG Brand FieldTrainer 425XS Remote Training Dog Collar, E Collar for Stubborn Dogs - Waterproof, Submersible Up to 25 Feet, Rechargeable Dog Training Collar with Remote Shock, Vibrate, and Tone - SportDOG Brand FieldTrainer 425X/SportHunter 825 Add-A-Dog Collar, Remote Training Collar, Hunting Dog Collar - Waterproof and Rechargeable with Tone, Vibration, and Shock (Orange) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/176156431-fieldtrainer-425xs-add-a-dog-collar-only-waterproof-compatible-fieldtrainer](https://www.desertcart.us/products/176156431-fieldtrainer-425xs-add-a-dog-collar-only-waterproof-compatible-fieldtrainer) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-09*