This is an AquaStar 1-1/2 inch Plaster Cap with Magnet-Finding Metal Insert. This cap threads into a 1-1/2 inch FPT pipe. It seals off pipes during the pool finish to allow for clean threads. The metal insert in the cap makes it easy to locate pipes with a magnet after plastering.
The plaster cap is manufactured from engineered polymer UV-resistant ABS material. O-ring is included.
