A:1. It is about 3-7 working days if products are in stocks. 2. If product are out of stock,The delivery time depends on the quantity. Q: Could you provide samples? A: Yes, of course. We will send samples to you against advance deposit, but the price of samplepump and the freight charge is paied by your side. Q: How about product problem solution? A: If you can’t solve the problem in your local, please send the product to us, we will repair it, then back to you.