800 Litre Slimline Wall Water Tank – Premium Rainwater Harvesting Solution
With its slimline profile and compact footprint of just 80cm x 60cm, this 800 litre water butt is ideal for installation alongside walls, garages, sheds, workshops and other outdoor structures where space is limited. Its sleek design makes it a practical and attractive addition to any property while providing substantial water storage for a wide range of applications.
Perfect for garden irrigation, greenhouse watering, vehicle washing, workshop use, toilet flushing and utility areas, this rainwater tank helps reduce mains water consumption and lower water bills. Stored rainwater is naturally softer than treated mains water, making it especially suitable for cleaning, watering plants and use in hard-water-sensitive applications.
Manufactured from durable, high-quality polyethylene, this slimline water tank is built to withstand outdoor conditions and provide years of reliable performance. Available in Black, Granite and Sand finishes, it can be matched to a variety of outdoor environments and property styles.
For optimum rainwater collection, we recommend pairing this tank with the Filter Collector Universal kit, which filters leaves and debris before directing clean rainwater into the tank.
Important: When installing against a wall, please allow sufficient clearance for the tank to expand slightly when full.
Key Tank Features
- Large 800 litre rainwater storage capacity
- Slimline, space-saving design
- Compact footprint: 80cm (W) x 60cm (D) x 179cm (H)
- Ideal for domestic, garden, and light commercial applications
- Manufactured from robust, UV-resistant polyethylene
- Available in Black, Granite, Sand
- Three integrated ¾" brass threaded connection points
- Suitable for connecting additional tanks or drainage systems
- Easy-access top lid opening
- Compatible with rainwater harvesting diverters and filters
- Perfect for irrigation systems, greenhouses, workshops, garages, and utility areas
Technical Specifications
- Capacity: 800 Litres
- Width: 80cm
- Depth: 60cm
- Height: 179cm
- Material: High-quality Polyethylene
- Connection Points: 3 x ¾" Brass Inserts
- Recommended Diverter: Universal Filter Collector
- Tap not included – Options available to add
Ideal Uses
- Rainwater harvesting systems
- Garden watering and irrigation
- Greenhouses and polytunnels
- Car and vehicle washing
- Utility room water supply
- Workshop applications
- Toilet flushing systems
- Outdoor cleaning tasks
What's Included
- 800 Litre Slimline Wall Water Tank
- Multi Hole-Saw Set
- Rubber Grommets
- Wall Fixing Bracket
- Fixing Screws
- Accessory & Fitting Kit
A practical and efficient rainwater harvesting tank, the 800 Litre Slimline Wall Water Tank offers exceptional storage capacity while maintaining a minimal footprint, making it the perfect choice for properties where space and water conservation are equally important.




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