Specification Brand : Yerabit BulletPoint1 : Replace: 1.5 inch Flexible Tank Adapter BulletPoint2 : Material: Made of rubber materials, flexible and durable BulletPoint3 : Package included: 6 x Adapters BulletPoint4 : NOTICE - The outer thread of the tank connector is reverse threaded, it can only play a fixed role with its own nut, it can't be connected with other fittings, the plug is optional, it can only be used in conjunction with the inner threaded tank connector. BulletPoint5 : PRODUCT DESIGN - Installation requires a hole opener to drill holes for the fittings to pass through, locking nuts are reverse threaded, bulkhead fittings with PVC leak-proof sealing washers provide a tighter connection, and plugs keep contaminants out of the tank and keep it clean. Color : Black ConnectorType : Adapter ExteriorFinish : Rubber IncludedComponents : Adapters ItemName : 1 1/2" Seal Flexible Rubber Tank Sealing Adapter Compression Fitting (1.5in-6pc) ItemPackageDimensions_Height : 19.304 centimeters ItemPackageDimensions_Length : 7.8994 centimeters ItemPackageDimensions_Width : 13.0048 centimeters ItemTypeKeyword : industrial-tube-fittings Manufacturer : Yerabit Material : Rubber ModelName : Flexible Rubber Tank Sealing Adapter ModelNumber : Flexible Rubber Tank Sealing Adapter NumberOfItems : 1 NumberOfPieces : 6 PartNumber : Flexible Rubber Tank Sealing Adapter ProductDescription : Flexible Rubber Tank Sealing Adapter Compression Fitting