Range Code	Range (psi)	Range Units
A 0-15 psi B 0-30 psi C 0-60 psi D 0-100 psi E 0-160 psi F 0-200 psi G 0-300 psi H 0-400 psi I 0-600 psi J 0-800 psi K 0-1000 psi L 0-1500 psi M 0-2000 psi N 0-3000 psi O 0-5000 psi 6k 0-6000 psi P 0-10,000 psi Q 0-15,000 psi S VAC 30"Hg-0 Hg T REC 3-15 psi U COMP 30" Hg+15 psi V COMP 30" Hg+30 psi W COMP 30" Hg+60 psi X COMP 30" Hg+100 psi Y COMP 30" Hg+160 psi 2k COMP 30" Hg+200 psi Z COMP 30" Hg+300 psi

Note - For Compound Inches of Water Column Ranges and Gauge Model Availability:  Find the gauge model/type from the McDaniel Gauge Selection Guide, and with your desired compound range, add together the vacuum(negative) and pressure (positive) side.  If the sum of the two added together equals a range for the table above then the compound gauge is available.  (e.g. - desired range: 50"-0-50" WC, in gauge model "A". Model  A is avaliable in 0-100".  50"-0-50" adds up to 100" WC.  Your compound range could be 70"-0-30", 30"-0-70", or 60"-0-40", etc.)