External O-Ring Head Seal for 2.5" Protec Seawater Vessels PRO-2.5-1200-EP-1, PRO-2.5-1200-EP-21

Head Seal O-Ring for Protec PRO 2.5-1200-EP Fiberglass Pressure Vessels O-Ring for Membrane Housing End Caps Replacement O-Ring Seal for Protec Arisawa seawater membrane housing pressure vessel end caps. External O-ring which seats between the outside of the end cap and the inside of the vessel body. O-Rings should be replaced each time the membrane elements are replaced, in order to avoid leaking due to seal tearing and cracking. O-Rings are are recommended to be lubricated with DOW Corning 111 High Grade Silicone Lubricant . Protec Part # 6180330-N For Membrane Housings: PRO 2.5-1200-EP-21 PRO 2.5-1200-EP-1 Qty Used per Housing: 2