Ernst Model Number Cross Reference

Usage Guidelines
Please Note:

  • Some Ernst Instrument products are comparable but not direct replacements.
  • Some Ernst Instruments items are alternates with the same form, fit and function, but not exact equals to all EFI items. Inquire if an exact equal is needed.
  • Certifications and other requirements, such as CRNs, inquire with Sales Team prior to placing Orders.

Hint: Use CTRL + F to quickly find the number you are cross-referencing!

Glass & Gaskets

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
G11-505CLEAR 500505
G11-506501 RED506
G11-507CLEAR HEAVY 600507
G11-508HEAVY 601 RED508
G11-522EFI-160TP522
G18-55166-RW551
G18-591Brass Washers591
G18-55399-GW553

Clear Flat Gauge Glass

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
G14-546CA-1, CA-2, CA-3, CA-4, CA-5, CA-6, CA-7, CA-8, CA-9546-1, 546-2, 546-3, 546-4, 546-5, 546-6, 546-7, 546-8, 546-9

Clear HP Flat Gauge Glass

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
G14-547CA-1-T, CA-2-T, CA-3-T, CA-4-T, CA-5-T, CA-6-T, CA-7-T, CA-8-T, CA-9-T547-1, 547-2,547-3, 547-4, 547-5, 547-6, 547-7, 547-8, 547-9
G14-545Reflex Flat Gauge Glass, RB-1, RB-2, RB-3, RB-4, RB-5, RB-6, RB-7, RB-8, RB-9545-1, 545-2, 545-3, 545-4, 545-5, 545-6, 545-7, 545-8, 545-9
G15Gaskets For Flat Gauge Glass, EFI-44585, 588, 595Ernst Instruments Gaskets are 1/16" Thick
G15B-Gaskets for 1" Wide Flat Gauge Glass585, 588, 595
G15-592MICA Shields for Flat Gauge Glass592
G16-852EFI-734BC852
G16-850EFI-734/690Q19850

Tubular Level Gauge Accessories

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
T18-840EFI-RCP840-

Sight Flows

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
S13T-SERIES 1400 THREADED, EFI-1420, EFI-1430, EFI-1470, EFI-1422, EFI-1432, EFI-1472, EFI-1421, EFI-1431, EFI-1471, EFI-1471, EFI-1423, EFI-1433, EFI-1473020, 130, 170, 021, 131, 171, 022, 132, 172, 023, 133, 173
S13F-SERIES 1400 FLANGED, EFI-1420-F, EFI-1470-F, EFI-1422-F, EFI 1472-F, EFI-1421-F, EFI-1471-F, EFI-1423-F, EFI-1473-F050, 270, 051, 271, 052, 272, 053, 273
S14FB- PlainEFI-910-FA (NF)200 , 240, 260
S14FB- FlapperEFI-910-FA202, 242, 262
S14FB- RotorEFI-935-FA201, 241, 261
S14FB- Drip TubeEFI-608-FA203, 243, 263
S12B- FlapperEFI-100-S102-
S12B- RotorEFI-300-S101-
S12B- Drip TubeEFI-200-S103-
S14TC-SERIES 2000 Threaded9 L, 060 L, 013 L, 063 L, 012 L, 062 L, 011 L, 061 L
EFI-20-00-T, EFI-20-10-T, EFI-20-20-T, EFI-20-30-T
S14FC-SERIES 2000 Flanged200 L, 260 L, 203 L, 263 L, 202 L, 262 L, 201 L, 261 L
EFI-20-40-F, EFI-20-50-F, EFI-20-60-F, EFI-20-70-F
S22C-EFI 4000-S108, 128, 158
S22B-EFI 265149-1, 149-2, 149-3
S21F-EFI GY-FL220, 221, 222, 223
S21T-EFI GY120, 121
S27TEFI 57
S27FEFI 215

Carbon Steel Gauge Valves

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
V11B-450EFI-333J, EFI-334J, EFI-335J, EFI-336J, EFI-323J, EFI-324J, EFI-325J, EFI-326J450
V11B-460EFI-433J, EFI-434J, EFI-435J, EFI-436J, EFI-423J, EFI-424J, EFI-425J, EFI-426J460

Armored Gauges

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
H13B-REFI S480-R11, 480-R12, 480-R13, 480-R14, 480-R15, 480-R16, 480-R17, 480-R18, 480-R19, 480-R24, 480-R25, 480-R26, 480-R27, 480-R28, 480-R29, 480-R36, 480-R37, 480-R38, 480-R39, 480-R47, 480-R48, 480-R49
EFI-S-1100J, EFI-S-1101J, EFI-S-1102J, EFI-S-1103J, EFI-S-1104J, EFI-S-1104J, EFI-S-1105J, EFI-S-1106J, EFI-S-1107J, EFI-S-1108J, EFI-S-1123J, EFI-S-1124J, EFI-S-1125J, EFI-S-1126J, EFI-S-1127J, EFI-S-1128J, EFI-S-1145J, EFI-S-1146J, EFI-S-1147J, EFI-S-1148J, EFI-S-1166J, EFI-S-1167J, EFI-S-1168J, EFI-S-56J, EFI-S-57J, EFI-S-58J
H13B-TEFI ST490-T11, 490-T12, 490-T13, 490-T14, 490-T15, 490-T16, 490-T17, 490-T18, 490-T19, 490-T24, 490-T25, 490-T26, 490-T27, 490-T28, 490-T29, 490-T36, 490-T37, 490-T38, 490-T39, 490-T47, 490-T48, 490-T49
EFI-ST-1200J, EFI-ST-1201J, EFI-ST-1202J, EFI-ST-1203J, EFI-ST-1204J, EFI-ST-1205J, EFI-ST-1206J, EFI-ST-1207J, EFI-ST-1208J, EFI-ST-1223J, EFI-ST-1224J, EFI-ST-1225J, EFI-ST-1226J, EFI-ST-1227J, EFI-ST-1228J, EFI-ST-1245J, EFI-ST-1246J, EFI-ST-1247J, EFI-ST-1248J, EFI-ST-1266J, EFI-ST-1267J, EFI-ST-1268J, EFI-ST-56J, EFI-ST-57J, EFI-ST-58J
H14B-TEFI WT491-T11, 491-T12, 491-T13, 491-T14, 491-T15, 491-T16, 491-T17, 491-T18, 491-T19, 491-T24, 491-T25, 491-T26, 491-T27, 491-T28, 491-T29, 491-T36, 491-T37, 491-T38, 491-T39, 491-T47, 491-T48, 491-T49
EFI-WT-10J, EFI-WT-11J, EFI-WT-12J, EFI-WT-13J, EFI-WT-13J, EFI-WT-14J, EFI-WT-15J, EFI-WT-16J, EFI-WT-17J, EFI-WT-18J, EFI-WT-23J, EFI-WT-24J, EFI-WT-25J, EFI-WT-26J, EFI-WT-27J, EFI-WT-28J, EFI-WT-35J, EFI-WT-36J, EFI-WT-37J, EFI-WT-38J, EFI-WT-46J, EFI-WT-47J, EFI-WT-48J, EFI-WT-56J, EFI-WT-57J, EFI-WT-58J
H11B-TEFI-12-WJ492-T11, 492-T12, 492-T13, 492-T14, 492-T15, 492-T16, 492-T17, 492-T18, 492-T19, 492-T24, 492-T25, 492-T26, 492-T27, 492-T28, 492-T29, 492-T36, 492-T37, 492-T38, 492-T39, 492-T47, 492-T48, 492-T49, 497-T11, 497-T12, 497-T13, 497-T14, 497-T15, 497-T16, 497-T17, 497-T18, 497-T19, 497-T24, 497-T25, 497-T26, 497-T27, 497-T28, 497-T29, 497-T36, 497-T37, 497-T38, 497-T39, 497-T47, 497-T48, 497-T49
EFI-1200WJ, EFI-1201WJ, EFI-1202WJ, EFI-1203WJ, EFI-1204WJ, EFI-1205WJ, EFI-1206WJ, EFI-1207WJ, EFI-1208WJ, EFI-1223WJ, EFI-1224WJ, EFI-1225WJ, EFI-1226WJ, EFI-1227WJ, EFI-1228WJ, EFI-1245WJ, EFI-1246WJ, EFI-1247WJ, EFI-1248WJ, EFI-1266WJ, EFI-1267WJ, EFI-1268WJ
H11B-REFI-12-WJ482-R11, 482-R12, 482-R13, 482-R14, 482-R15, 482-R16, 482-R17, 482-R18, 482-R19, 482-R24, 482-R25, 482-R26, 482-R27, 482-R28, 482-R29, 482-R36, 482-R37, 482-R38, 482-R39, 482-R47, 482-R48, 482-R49, 487-R11, 487-R12, 487-R13, 487-R14, 487-R15, 487-R16, 487-R17, 487-R18, 487-R19, 487-R24, 487-R25, 487-R26, 487-R27, 487-R28, 487-R29, 487-R36, 487-R37, 487-R38, 487-R39, 487-R47, 487-R48, 487-R49
EFI-1200WJ, EFI-1201WJ, EFI-1202WJ, EFI-1203WJ, EFI-1204WJ, EFI-1205WJ, EFI-1206WJ, EFI-1207WJ, EFI-1208WJ, EFI-1223WJ, EFI-1224WJ, EFI-1225WJ, EFI-1226WJ, EFI-1227WJ, EFI-1228WJ, EFI-1245WJ, EFI-1246WJ, EFI-1247WJ, EFI-1248WJ, EFI-1266WJ, EFI-1267WJ, EFI-1268WJ
H19EFI FG904, EFI FG905, EFI FG906, EFI FG907, EFI FG908, EFI FG909, EFI FG966, EFI FG977, EFI FG988, EFI FG999

Armor Level Gauge Accessories

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
EPL-100EFI LEVELITE816 EPL
EPL-

Magnetic Level Gauges

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
F21EFI-MINI-MAGNA048
F11EFI-MAGNA049

Sight Windows

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
W11-WNWelding Neck311, 351
EFI-W-5000
W12Welding Pad312, 352Inquire if CRN Needed
EFI-5200
W11-FNThreaded Connection
EFI-S5100

Threaded Sight Windows

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
W16-LPLow Pressure341
EFI-540, EFI-540S
W16-MFLow Pressure Fused322
EFI-1260, EFI-1260BR
W16-MPMedium Pressure316
EFI-S5400
W16-HFHigh Pressure722
EFI-HPSP

Glass

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
G13-540Low Pressure Annular Edge Glass540M-1, 540M-2, 540M-3, 540M-4, 540M-5
AE695620, AE695610, AE692540, AE694790, AE694800
G13-541High Pressure Annular Edge Glass541M-1, 541M-2, 541M-3, 541M-4, 5401M-5
AE695621, AE695611, AE692541, AE694791, AE694801
G12-Borosilicate Rectangles & Circles530, 531, 538, 539, 532, 533
EFI-S-2130, EFI-C-2140, EFI-S-2130 BLUE, EFI-C-2140 BLUE
W14-EFI SAFEPORT501
EFI-SP

Tubular Gauge Valves

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
T11EFI-0000, EFI-00000, EFI-00316, EFI-00316, EFI-23-651, EFI-23-654, EFI-29, EFI-3, EFI-581-1L, EFI-581-1L, EFI-6155, EFI-7-1/2, EFI-L-150E, EFI-L-150E401-04, 401-03, 440-04, 440-05, 448-04, 448-05, 407-04, 405-04 NA, 405-05 NA, 407-05, 405-04, 405-05
T12EFI-36A, EFI-37A
T14EFI-23-350, EFI-23-353436-04, 436-05
T16EFI-203J, EFI-204J, EFI-206J, EFI-243J, EFI-244J, EFI-245J, EFI-246J, EFI-205J, EFI-206N-Inclined430-04, 432-04, 432-05, 430-05
T17EFI SG854, EFI SG855, EFI SG860
T19EFI-402RS, EFI-403RS, EFI-450-FV, EFI-450-SFI, EFI-450-SI, EFI-450-SV, EFI-450-SV, EFI-503RAS
T20EFI-31A, EFI-31AL, EFI-34, EFI-34A, EFI-34AL

Brass Air Cocks

ERNST INSTRUMENTS
SERIES #		EFI - ERNST FLOW INDUSTRIES
SERIES #		JOHN C. ERNST CO
PART NUMBERS		NOTES
R11701, 702, 703, 704
R12EFI 6, EFI 7, EFI 63T, EFI 64T, EFI 8,
EFI 12, EFI 13, EFI 14, EFI 15, EFI 26,
EFI 27, EFI 52, EFI 53, EFI 54, EFI 54A,
EFI 55, EFI 56, EFI 57A, EFI 81L