The Aquascape line of Stacked Slate Spheres is below.
Small Stacked Slate Sphere (78287)
Medium Stacked Slate Sphere (78288)
Large Stacked Slate Sphere (78289)
Medium Stacked Slate Sphere Landscape Fountain Kit (78290)
The Aquascape line of Spheres are compatible with the Aquascape Fire Fountain Add-on Kit.
Please review the link below for more information.
Stacked Slate Urn - Fire Fountain Add-On Kit (78221)
https://www.aquascapeinc.com/products/fire-fountain-add-on-kit
If you have questions about this product, please Email Us