Slate Monolith SM163 is a spectacular 600mm tall tower of real Welsh Slate, core drilled vertically as a garden design water feature. This beautiful piece has a stunning mix of green tones running throught with clear shades varying across the face with a nice build up of quartz on the edge. When the water is cascading over this slate monolith, the slate will glisten and if lighting is used at night will look absolutely stunning.

Reservoir & Pump Pack available in the basket.


1 in stock

Water Feature Accessories

Add a Large Reservoir Pack to complete the water feature functionality of this natural stone. Slate Chippings in hand 18kg bags are a popular accessory.

Reservoir Pack | Welsh Slate Water Features
Large Reservoir Pack

Reservoir, pump, hose, clip and flow valve regulator for completing medium and large sized water features.

Add to basket
Slate Chippings SCB1
Slate Chippings Handy Bag

18kg of small mixed sized slate chippings.

Add to basket
Dimensions400 × 230 × 600 mm

Welsh Slate


Water Feature


Green, Mixed, Quartz


30mm (water flow)

FREE DELIVERY to standard UK postcodes, usually within 14 working days.

Contact us to discuss special requirements for delivery, remote postcode areas and international shipping quotes. Standard consumer rights apply.

Delivery & Returns

These additional products are required to complete a water feature installation: a reservoir, pump, hose & jubilee clips. All available to buy in the Basket when purchasing a stone pyramid.

Our blog contains extensive guides for how to install stone pyramids and water features, including a detailed step by step and links for the recommended additional third party products.

Stone Pyramid Install Guide

Water Feature Install Guide
Slate Monolith SM163 measures approximately 400x230mm and is 600mm tall, making it part of our Medium Stone Monoliths collection. This piece was chosen by hand for it’s shape and texture, both popular choices as water features for UK gardens. Please note the photos are of the exact decorative stone for sale and there is only one available. Additional images available in the product gallery, highlighting the gorgeous tones and character of this beautiful slate monolith.
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