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WIKA 50365631 Standard Digital Pressure Gauge, Stainless Steel 316L Wetted Parts, 4-1/2" Dial, 0-10000 psi Range, +/-0.5% Accuracy, 1/4" Male NPT Connection, Bottom MountAmazon$13.95
WIKA 113.13.25.4000.L Pressure Gauge, 0 to 4000 psi, 1/4 in MNPT, BlackZoro.com$31.83
Wika 111.10 2 2" Commercial Vacuum Gauge, 30 to 0" Hg, Lower MountAmazon$17.49
WIKA 113.13.25.VAC.L Vacuum Gauge, -30 to 0 psi, 1/4 in MNPT, BlackZoro.com$15.39
WIKA 113.13.15.30V.B Vacuum Gauge, -30 to 0 in Hg, 1/8 in MNPT, BlackZoro.com