1. GRP(glass reinforced plastic) panel can block sunlight, prohibit bacteria growth, suitable for drinking water storage; 2. PVC foam sealing tape is leaking-proof; 3. Heat insulation layer optional to guarantee the water temperature. 4. Manhole Panel easy to check water condition. 5. SS41/S. S. Support pipe/bar/plate /frame maintain durability. 6. Sectional panel easy to assemble as required.