Little Giant PLU-1518 15′ x 18′ Underlayment – 2000 Gallon, 10′ x 13′ Water Garden based on 2′ depth (566323)

Little Giant PLU-1518 15′ x 18′ Underlayment – 2000 Gallon, 10′ x 13′ Water Garden based on 2′ depth (566323) Underlayment 15′ x 18′ Underlayment – 2000 Gallon, 10′ x 13′ Water Garden based on 2′ depth Little Giant PLU-1518 15′ x 18′ Underlayment – 2000 Gallon, 10′ x 13′ Water Garden based on 2′ depth (566323) Features: * 15′ x18′ * Provides extra protection under liner * Quicker/Easier to install than sand