Defender - 1L is a must-have product for maintaining and protecting your spa. Its special formula is designed to prevent the buildup of limescale, minerals, and copper, which can damage your spa's shell. By investing in Defender - 1L, you can enjoy a sparkling, pristine spa for longer. Don't neglect your spa's maintenance and trust Defender to protect it effectively.
 User manual:
 Add 100 ml of Defender to your spa water. Let your filtration system run for approximately 1 hour.