GRAF Garantia Lilo XL 7500L Underground Tanks Perth

When space is limited but storage demands are high, the GRAF Garantia Li-Lo XL 7500L Underground Tank delivers an exceptional solution. Specifically designed for shallow excavations, this German-engineered tank offers a large storage capacity while keeping installation simple and cost-effective—making it ideal for Perth homes, developments, and commercial sites looking to harvest more water without deep digging.

The Li-Lo XL’s flat, wide design means less soil excavation and a quicker install compared to traditional vertical tanks. Despite its impressive 7500L volume, it remains lightweight and easy to transport, yet durable enough to remain stable in groundwater up to the shoulder—without needing concrete for anchoring.

Perfect for WA’s dry climate and strict water management needs, the tank can also be vehicle-loadable when installed with the optional Telescopic Dome Shaft and Cast Iron Lid.

FEATURES

• Shallow installation depth – Only 125 cm tank height reduces excavation time and cost
• High capacity – 7500L underground storage for large-scale rainwater harvesting
• Rotating tank dome – Easily align inlet/outlet pipework without complex fittings
• Optional second dome – Expandable design for dual access or multi-point connection
• Heavy-duty load rating – Suitable for heavy vehicle (HGV) traffic up to 30 tonnes (with appropriate dome shaft and cover)
• Flexible connections – Prefitted DN150 lip seals with compatibility for connections up to DN300
• Integrated DN150 filter technology – High-performance filter built in for clean water capture
• Stainless steel dome profile – Ensures secure, precise dome mounting and long-term reliability
• Large dome opening – Allows connection fittings of up to DN200 directly on the dome, or up to DN300 on the tank body
• UV-stable, corrosion-resistant construction – Built to withstand Perth’s harsh conditions
• Easy transport and handling – Despite its size, lightweight plastic construction simplifies delivery and positioning
• 15-year manufacturer’s warranty – Long-term peace of mind and asset protection

SPECIFICATIONS