D4 Herd Master Diaphragm Yellow

D4 Diaphragm Call – The Apex of Precision

Built by a multi-time NWTF Grand National Calling Champion, the D4 is a triple-latex diaphragm designed for clean, accurate elk vocalizations with exceptional control.

A refined cutout delivers precise tone across a wide range of calls, while the standard frame ensures a comfortable, secure fit. Durable, versatile, and easy to run, the D4 gives both new and experienced callers a clear edge in the field.

Champion-built. Precision-tuned.