H—Signify the vertical dimension of reversed assembling movement's needle pivot to Mounting holes of attachment.
B—Signify the center distance of reversed assembling movement's two mounting holes.
L—Signify the length of needle pivot (which means shaft gear).
Product Name: Movement for 4 inch diaphragm pressure gauge
Material: stainless steel 304 or brass
Transmission ratio: 14.77
Movement's shaft gear: 13
Color: Original color
Certificate: ISO9001; ISO14001
Used: Diaphragm pressure gauge