GLI 21' Round Armor Shield Liner Floor Pad | 70-0021RD-BLK-160 AquaChek TruTest non-clouding — keeps water crystal

non-clouding — keeps water crystal clear and maintains sanitizer balance

Trust Maytronics engineering and Duckies Pool Supply's fast service—add to cart now and enjoy smoother

ensuring a precise fit and reliable sealing surface

Fast dissolving granular chlorine sanitizer

The Frog Cap O Ring is a replacement seal built for King-Tech Chlorine Cyclers and chlorine feeders

GLI 21' Round Armor Shield Liner Floor Pad | 70-0021RD-BLK-160 AquaChek TruTest non-clouding — keeps water crystalArmor Shield provides an important protective layer between a vinyl swimming pool liner and its sand or soil base. Unlike traditional foam padding, Armor Shield is a Polypropylene Geotextile blend that minimizes cuts and punctures to the vinyl liner caused by rocks, roots, grass and even GLASS! Armor Shield also reduces convective heat loss and provides a comfortable floor pad for the comfort of pool goers.