Underground GRP tanks
Underground GRP tanks

Tough British made one-piece GRP tanks suitable for underground installation manufactured to BS 4994. These underground GRP tanks are strong and lightweight, and are easy to install in most ground conditions with concrete backfill for a secure permanent installation. Where ground conditions permit, a heavier duty version can be used with a granular backfill material.

Advantages include:

  • Lightweight
  • Easy to install
  • Cost-effective
  • Supplied complete with fitted stainless steel flow calmer and unique anti-backflow overflow unit
  • Can be used in trafficked areas with cover slab
  • 10 year warranty

Sizes available: 10,000L, 12,000L, 14,000L, 16,000L, 18,000L, 20,000L, 22,000L, 26,000L, 34,000L and 38,000L.

For even larger tanks click here to explore our RainTech® Pro range.