Millipore Waters 501 HPLC Solvent Delivery System Pump Model 501, turned on when connected to electric source, no further professional test where managed. shipped with UPS ground. Store Return Policy The store policy can be concluded and varied depends on the item condition classification as follows: New Condition This condition described the item new never used never opened in original manufacturer packing. Buyers can return this item category and we the seller will charge 20% restock and the return shipping unless the item damage from handling and/or shipping. Used Condition This condition described the item, which is used but in working condition, sign of used in the form of wears and dents are commonly presented with this condition category. This item is accepted for return with no charge to the buyer if it is damaged or does not work. If the buyer changes mind/ not needed it, then the seller will charge the shipping cost both sending and return cost from the buyer fund. For Parts or Not Working Condition This condition describes the items which were damaged and sold for parts only and this item cannot be accepted for return for any reason. Buyers be careful before buying the items in these categories and they should not assume or expect any other than damaged items might be used for parts.