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Amazon.com : Manfrotto 323 RC2 Rapid Connect Adapter with 200PL-14 Quick Release Plate - Replaces 3299-Black and a ZAYKiR Quick Release Plate for the RC2 Rapid Connect Adapter : Electronics
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Low Pro Quick Release Adapter Plate - RC4 - 410PL | Manfrotto US
Manfrotto 323 RC2 System Quick Release Adapter with 200PL-14 Plate by Manfrotto at B&C Camera
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Manfrotto 323 RC2 System Quick Release Adapter with 200PL-14 Plate by Manfrotto at B&C Camera
Amazon.com : Manfrotto Cameras Quick Release Plate with Special Adapter (200PL) : Tripod Camera Mounts : Electronics
Manfrotto 357 Pro Quick Release Adapter with 357PL Plate by Manfrotto at B&C Camera