CMP Pressure Test Plug [FG Main Drain] (25215-900-000) laingthermotech O-rings are widely used because

O-rings are widely used because they offer a compact

It is a practical option when the repair calls for a more complete restoration of the channel drain opening rather than a partial component change

When the original cartridge reaches the end of its useful life

Supports cleaner and more dependable system management

CMP Pressure Test Plug [FG Main Drain] (25215-900-000) laingthermotech O-rings are widely used becauseThe CMP Pressure Test Plug [FG Main Drain] is a practical replacement test plug for service work where matching the original configuration matters more than making a broad, generic substitution. It is used around drain or main drain service points where correct sizing and compatibility help simplify testing, winterizing, or water movement through the pool or spa system. Key identifying details from the listing include FG Main Drain. Because many CMP,