A: Yes,we offer samples for testing with cost paid by buyer.Besides we welcome our customers to take sample as we believe seeing is believing. 2.Q: What's your MOQ? A:We can accept small order if have on stock, and usually 100pcs OEM order. 3.Q:Do you have warranty? A :Yes,Good after-sale service: 6months-12months warranty 4.Q:What is your factory's advantage? A: We are Direct Factory competitive price,save each penny to you. And our factory have 10 years experience 5. Can you design the new housing based on our design? A: We have professional technicial team . We can design. one week make sample 30days sample test 45days start to MP. 6.Could you provide the design for me? A:Absolutely,we accept OEM and ODM .We are a manufacturer and designer.Just let me know your product informations and requirements like product sizes,water capacity,functions,or price budget and so on.We will make a good designs to your requirments.