SIRGAS_ES2007.8 - ESRI:115791

WKT

VERTCS["SIRGAS_ES2007.8", 
	DATUM["D_SIRGAS_ES2007.8", 
		SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["SIRGAS_ES2007.8", 
	DATUM["D_SIRGAS_ES2007.8", 
		ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
	CS[vertical, 1], 
	AXIS["Ellipsoidal height (h)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["Esri", "115791"]]

Data from @esri/proj-codes

{
  "wkid": 115791,
  "latestWkid": 115791,
  "macro": "PE_VCS_SIRGAS_ES2007_8",
  "name": "SIRGAS_ES2007.8",
  "wkt": "VERTCS[\"SIRGAS_ES2007.8\",DATUM[\"D_SIRGAS_ES2007.8\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"SIRGAS_ES2007.8\",DATUM[\"D_SIRGAS_ES2007.8\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],CS[vertical,1],AXIS[\"Ellipsoidal height (h)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"Esri\",\"115791\"]]",
  "description": "SIRGAS_ES2007.8",
  "authority": "Esri",
  "version": "10.4.0",
  "deprecated": "no",
  "areaname": "El Salvador",
  "extent": {
    "slat": 9.97,
    "nlat": 14.44,
    "llon": -91.43,
    "rlon": -87.65
  }
}