Micro Diaphragm Pump, Explosion?Proof Proof Engineering Plastic Mini Vacuum Pump Features: Product Features ?Premium Material?Made of engineering plastics, with explosion?proof safety performance. The micro diaphragm pump is easy to install and provide much convenience to life ?Stable Operation?This micro diaphragm pump is equipped with a pressure switch and an overflow valve to protect the pump from damage and control the normal operation of the pump. ?High Performance?This micro diaphragm pump has the characteristics of low noise, resistance and high pressure. Small in size, owning strong structure, and long serving life. ?Safe Use?This micro diaphragm pump is easy to disassemble and assemble, and uses a safe low voltage to ensure safety. ?Wide Applications?The micro diaphragm pump widely used in instruments and equipment, chemical industry, home appliances and other fields. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!