Echo Plastic Hex Threaded Port Plugs

Originally titled 'Plastic Hex Threaded Port Plugs'

The HT series of hex threaded port plugs from Echo Engineering & Production Supplies was developed as a direct replacement for metalworking port plugs.

The HT series of hex threaded port plugs from Echo Engineering & Production Supplies was developed as a direct replacement for metalworking port plugs. Made from chemical-resistant, high-impact plastic, they offer the same sealing function as the metal plugs, and are said to be an economical alternative.