Mermaid Central Bulb Water Stop 250mm × 15M Blue PVC
The Mermaid Central Bulb Water Stop 250mm × 15M Blue PVC is designed to prevent water leakage through construction joints in concrete structures. Installed within concrete joints, this PVC water stop acts as a barrier that blocks water penetration and protects structural integrity. The central bulb design helps accommodate movement in the joint while maintaining an effective seal against water intrusion. This water stop is commonly used in construction projects requiring reliable waterproofing, such as basements, foundations, tunnels, reservoirs, water tanks, and canals. Its flexible PVC structure allows easy installation while providing dependable joint sealing in water-retaining and underground structures.
| Specification | Details |
|---|---|
| Item Type | Water Stop |
| Brand | Mermaid |
| Type | Central Bulb |
| Material | PVC |
| Color | Blue |
| Width | 250 mm |
| Length | 15 Meter |
| Installation | Embedded in Concrete Joints |
| Applications | Basements, Tunnels, Water Tanks, Foundations |
FAQ (Frequently Asked Questions)
1. What is a central bulb water stop used for?
A central bulb water stop is used to prevent water leakage through concrete construction joints in buildings and infrastructure projects.
2. Where can this water stop be used?
It can be used in basements, foundations, tunnels, reservoirs, swimming pools, and water tanks.
3. What is the advantage of the central bulb design?
The central bulb design helps deflect water away from the joint while accommodating slight joint movement.
4. How is the water stop installed in concrete structures?
The water stop is placed between two concrete sections and secured to reinforcement bars before pouring concrete.
5. Is this water stop suitable for water-retaining structures?
Yes, it is suitable for dams, canals, reservoirs, water tanks, and other waterproof concrete structures.
At Biri Group KSA, we aim to ensure complete satisfaction with every purchase made through our website. If for any reason you are not entirely happy with your order, you may return eligible items under the following conditions:
Eligibility for Returns
Returns will be accepted within 30 days of the customer's receipt (based on delivery date). You must notify us in advance via email before sending the product back. Returns will only be accepted in the following situations:
- Received the wrong item.
- Item arrived not as expected (ie. damaged).
- Item had defects.
- Over delivery time.
Condition of Returned Items
To be eligible for a full refund (excluding shipping charges if any), returned products must meet all of the following criteria:
Failure to meet these conditions may result in partial refund or no refund based on the item's assessed condition.
Refund Process
Once we receive your returned item and verify its condition:
For any questions or to initiate a return, please contact our support team at sales.ksa@birigroup.com with your order number and a brief explanation of the issue.



