20" Tall Basalt Column features a pooling area which fills with water creating a gentle fall down all sides from a single 1 1/2" outlet, use with pondless kit 24R06001 or 24C06001. (Rock Dimensions 12" x 14" x 30") 
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30" Tall Basalt features a unique top that water bubbles from a single 1 1/2" outlet, use with pondless kit 40R06001 or 48L06001. (Rock Dimensions 12' x 14" x 30") 
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40" Tall Basalt features a concave top allowing flow across the top and down all sides froma single 1 1/2" outlet, use with pondless kit 40R10501 or 48L10501. (Rock DImensions 12" x 14" x 40") 
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The Basalt Grouping contains 3 basalts columns (20", 30" & 40") all molded from natural stone and hand finished, acheiving detail only found in nature, use with pondless kit 48R10503 or 48L10503 
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