PP attribut :
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Polypropylene immersion heater tube enclosure for highly corrosive environments, Y3C6
Screws: There is no external screw in this housing. Cover: Screwed cover, with Molded FKM (Viton) fluoroelastomeric polymer, silicone or NBR O-ring gasket. Cover can be tightened by hand or with a double hook wrench.