A durable, premium quality garden tank for rainwater storage, these wall tanks are a practical alternative to underground rainwater tanks. Large 850 litre capacity water atorage tanks with a small space saving footprint. Self-cleaning Filters are available for diverting filtered rainwater sideways into the tank, while leaves and debris continue down the drain. Tank-to-tank connectors are available for multi-tank systems. By clever design each water tank can be easily linked to the next using a sturdy 25mm hose between metal threads.