Note: Watts has rebranded SeaTech to Watts AquaLock. This rebrand does not affect the part numbers. However, during the transition the product and packaging that you order may be branded as SeaTech or Watts AquaLock. The color will also vary. The size and specs of the products as well as the part numbers will remain the same.
Specifications:

• End plug for 1″ CTS fittings

Also Known As: Watts 81903003
Note: Tubing is measured by the Outside Diameter, specified in inches or fraction of an inch. Pipe is usually measured by nominal pipe size.