| After-sales Service: | on Line Service |
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| Warranty: | One Year |
| ventilation mode: | natural ventilation |
| Samples: |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier
| Length | Coupling Inner Diameter |
| 50m | 14/16mm |
| 50m | 16/18mm |
Suppliers with verified business licenses
Audited Supplier 
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