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Amazon.com : Concept2 Model D Indoor Rowing Machine with PM5 Performance Monitor, Black : Sports & Outdoors
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Amazon.com : Concept2 Model D Indoor Rowing Machine with PM5 Performance Monitor and Polar H10 ANT+ Heart Rate Monitor, M-XXL: 26-36" HRM : Sports & Outdoors
![Amazon.com : Concept2 Model D Indoor Rowing Machine with PM5 Performance Monitor, Black : Sports & Outdoors Amazon.com : Concept2 Model D Indoor Rowing Machine with PM5 Performance Monitor, Black : Sports & Outdoors](https://m.media-amazon.com/images/I/61q7xAq29JS._AC_UF350,350_QL80_.jpg)