Abplag Zinc Sacrificial Anode—Suitable for 2-inch Pipes, with Copper Wire, Protects Pool and spa Metal from Corrosion, and Features a Clear Viewing Cap for Easy Installation. (2'' (with Copper Wire))

["★Double Protection: Corrosion and electric shock safety. The anode is made of durable pure zinc alloy, preferentially corroding itself to protect metal components (pipes, pumps, heaters) from rust and extend their service life. External copper terminals allow for quick connection to grounding, reducing the risk of electric shock and improving safety.","★ The transparent cover allows for easy inspection of zinc anode corrosion and convenient replacement, providing great convenience.","★ Helps prevent plaster discoloration, radiator damage, and black stains.","★ No piping required. Suitable for newly installed in-line zinc anodes, compatible with 2-inch pipes.","★ Protects valuable pool equipment such as all types of heaters: gas, electric, and heat pumps, preventing corrosion caused by stray current/galvanic corrosion."]