Automatic HP Tri-Block - DCI 4421

• Consistent flow control for handpiece pressure adjustments
• Individual drive air adjustment screws
• Higher output due to improved airflow
• Longer lasting diaphragm
• No internal cross-over of air or water
• Block dimensions: 2 3/8" x 1 1/2" x 1"

OEM part numbers:

Beaverstate Dental 125-030
Forest Dental 1100-170
Chapman-Huffman 60-275
Parts Warehouse V-1842