Inquiry (采购产品): sight glasses for vessels . I will be installing 2 sight glasses on a sump tank.Low pressure sight glasses.But have to be protected.How would I go about measuring for the sight glasses.On the tank from center of top nipple to center of bottom nipple or is there another way. **** Hidden Message ***** Danzel Marcantel 70586 Company: Mariner Energy,Inc. E-mail: ss-295@mariner-energy.com **** Hidden Message ***** ss-295@mariner-energy.com
