# Underground Tanks

# **Hidden & Secure Storage with Underground Water Tanks**

Maximize your water storage with our Underground Water Tanks at [Pro-Line Direct](https://prolinedirect.co.uk/). Designed for discreet and space-saving installation, these tanks provide secure and reliable storage for rainwater harvesting, potable water, and more. Perfect for both residential and commercial applications, our underground tanks ensure efficient use of space while maintaining easy access. Explore our range to find the ideal solution for hidden water storage.

## Products in this collection

- [350 LTR Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/350-ltr-water-holding-tank-with-lid-above-below-ground-1) - 240.0 GBP
- [227 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/227-litres-water-holding-tank-with-lid) - 214.5 GBP
- [4500 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/4500-litres-water-holding-tank-with-lid-above-below-ground-1) - 1314.0 GBP
- [1550 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/1550-litres-water-holding-tank-with-lid-above-below-ground-1) - 492.0 GBP
- [1350 LTR Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/1350-ltr-water-holding-tank-with-lid-above-below-ground-1) - 447.0 GBP
- [6000 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/6000-litres-water-holding-tank-with-lid-above-below-ground-1) - 1672.5 GBP
- [3400 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/3400-litres-water-holding-tank-with-lid-above-below-ground-1) - 1072.5 GBP
- [2250 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/2250-litres-water-holding-tank-with-lid-above-below-ground-1) - 600.0 GBP
- [2150 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/2150-litres-water-holding-tank-with-lid-above-below-ground-1) - 559.5 GBP
- [1850 Litres Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/1850-litres-water-holding-tank-with-lid-above-below-ground-1) - 499.5 GBP
- [1150 LTR Water Holding Tank with Lid - Above & Below Ground](https://t0yyqu-cx.myshopify.com/products/1150-ltr-water-holding-tank-with-lid-above-below-ground-1) - 394.5 GBP

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> Source: [Pro-Line Direct](https://t0yyqu-cx.myshopify.com/collections/underground-tanks)
> Updated: 2026-05-14