Culvert Balloon

Inflatable rubber culvert balloon, used in construction to create hollow cavities in concrete for drainage pipes or culverts. Function: It is inserted into a rebar cage and inflated with compressed air to form a support mold before concrete is poured. Material: Manufactured from high-strength, vulcanized rubber for durability and flexibility. Usage: Once the concrete sets, the balloon is deflated and removed, leaving a perfect tunnel.