Laboratory Hydrogen Generator 0-300ml/min and similar items

This estimate is based on:

• The seller's handling time
• Standard shipping (1 to 5 business days) transit time to US

Actual delivery times may vary. Have shipping questions? Contact the seller

Return / Refund

If you are not 100% happy with your purchase, please contact Us. Please don’t directly opened a request or case without informing us, or else, we will do some discounts on the warranty and other sales-services later on. Hope for your understanding.

Returns & Exchanges

? All returns must be made within 14 days of delivery date. Items must be in new, unused condition, with all original materials included with the shipment. A partial refund may be applied for opened or damaged items, depending on the condition.
? Items returned under the buyer’s remorse: The return shipping fee must be covered by the buyer; The original shipping cost will also be deducted from the refund. 15% restocking fee of the items purchase price will be charged.
? Returns that are the result of our seller’s error: Buyer will receive a full refund of the item as well as shipping charges
? All returns require a RA (Return Authorization) number that will be given by our seller. Please contact with us at first for more details.

Defective & Damaged Products

? If product was received damaged or not as described, please send us some pictures or videos, so we could well understand your problem, then solve them for you ASAP. Besides, it’s much helpful for us to claim with UPS, remind our related department to pay much more attention to packaging later on. Hope for your understanding.
? Replacement or refund of defective or damaged products can only be returned in exchange for the exact same product, or else, the purchase price will be refunded back to your original payment method.
? If an item is received damaged, customer service must be contacted within 7 days of receiving your item. All returns require a RA (Return Authorization) number as above.