4PCS Car Oxygen Sensor Adapter with Filter – Improves Sensor Performance and Longevity

Shipping & Delivery

At SanDan Store, we are committed to providing fast and reliable shipping services to ensure your order arrives safely and on time. Below are the details of our shipping and delivery policies.
Shipping Fees
We offer two shipping options to meet your needs:
- Save Shipping: $4.95
This is our economical shipping option with a lower cost.
- Fast Shipping: $8.95
This option provides faster delivery times for an additional fee.
Delivery Time
- Order Processing Time: 2-5 days
- Estimated Delivery Time: 3 to 10 days (including order processing)
Please note that actual delivery times may vary due to factors such as order volume, customs delays, natural disasters, or incorrect shipping addresses provided by the customer. We will do our best to ensure your package arrives within the estimated timeframe.
Shipping Destinations
We currently ship to customers in the United States. For international shipping inquiries, please contact us directly to check availability.
Shipping Carriers
We partner with trusted shipping carriers to deliver your package. Our primary carrier is USPS (United States Postal Service), and we occasionally use UPS depending on your location and selected shipping option.
Tracking Your Order
Once your order has been shipped, you will receive an email notification with a tracking number. You can use this number to track your package on the carrier’s website (e.g., USPS or UPS). Alternatively, you can track your order directly on our Track Your Order page.
Contact Us
For any questions regarding shipping or delivery, please feel free to reach out to us:
- Email: support@sandanstore.com
- Phone: +84 905 937 059
You can also visit our Contact Us page for more details. Thank you for choosing SanDan Store!

Frequently Asked Questions
1. How do I search for products on SanDan Store?
You can search for products by entering the product name or keyword into the Search Bar at the top of any page. For best results, try using a general description with multiple keywords. The more specific your keywords, the fewer products will appear in the results. Once you find a product you’re interested in, simply click the product name or image to view more details.
2. How are shipping costs calculated?
Shipping costs at SanDan Store are based on the shipping method you choose. We offer two options:
- Save Shipping: 4.99 USD
- Fast Shipping: 8.95 USD
These rates are calculated based on the shipping method (air, sea, or land), product weight, and destination. For more details or specific shipping inquiries, please contact us at support@sandanstore.com or +84 905 937 059.
3. How long does shipping take?
Our estimated delivery time is between 3 to 10 days, including order processing (2-5 days). However, delivery times may vary depending on your location, shipping method, and external factors such as customs delays. You can find more details in our Shipping & Delivery Policy 
4. What payment methods do you accept?
We currently accept payments via PayPal only. PayPal allows you to pay securely using your PayPal account or a credit/debit card without needing to create an account. We are working to add more payment options in the future to enhance your shopping experience.
5. What is Buyer Protection?
Buyer Protection is a set of guarantees that ensures you can shop with confidence on SanDan Store. You are protected in the following cases:
- The item you ordered does not arrive within the guaranteed delivery time (35 days, excluding processing time).
- The item you received does not match the description provided.
- The item you received, which was assured to be genuine, is found to be counterfeit.
If any of these issues occur, you may be eligible for a refund or replacement as outlined in our Refunds & Returns Policy
6. How can I return a product or request a refund?
If you’re not satisfied with your purchase, you can return the product within 35 days from the purchase date, provided it is in its original condition and packaging. Customers are responsible for return shipping costs. To request a return or refund, please contact us within 15 days after the guaranteed delivery period (35 days) has expired. You can reach us via our Contact Us page , email us at support@sandanstore.com, or call us at +84 905 937 059. For more details, please see our Refunds & Returns Policy
7. How can I track my order?
Once your order has been shipped, you will receive an email with a tracking number. You can use this number to track your package on the carrier’s website (e.g., USPS or UPS). You can also check your order status by visiting our Track Your Order page.
8. How do I contact SanDan Store?
We’re here to assist you! You can reach us via:
- Email: support@sandanstore.com
- Phone: +84 905 937 059
- Address: Trung Ha, Cam Kim, Hoi An, Quang Nam, Vietnam 51000
For more details, please visit our Contact Us page.
Have more questions? Feel free to reach out to us, and we’ll be happy to help!