... top, left, right, center back, offset back6) Liquid filled media:glycerine oil or silicone oil7) Dial plate:single and ... rangevacuum, compound, 0 - 15psi - 10,000psiLiquid filled mediaglycerine oil or silicone oilPlace of OriginManshan City ,ChinaYear2012CertificationISOWarranty ... Piece/Pieces per DAYWarranty One Year Details show Liquid Filled Gauge:Back Connection :Oil Guage Bottom Connection : ...