Horiba STEC GR-317F Mass Flow Controller GR-300 MFC He 50 SCCM Lot of 4 New

1. Please specify the model and quantity when placing orders.2. Regarding all kinds of products, our store sells new and second-hand, please specify when placing an order.

If you need any item from our store, please feel free to contact us. If you need other products are not on the store, please you also can contact us, and we will find the corresponding products with affordable prices for you in time.

1. Regarding Missing or Incorrect ShipmentsWe will clearly indicate the product name and quantity on the shipping invoice. We recommend that you check the package in the presence of the courier upon receipt. If you find any missing or incorrect items, please contact us immediately. If the issue is due to our oversight, we will promptly reship or exchange the items and cover all shipping costs.

2. Regarding Returns and ExchangesIf you need to return or exchange an item, please contact our customer service in advance to confirm important details such as the refund amount and return address.

3. Regarding PackagingAll products in our store will be additionally packaged on top of their original packaging to ensure that your items are delivered intact and undamaged.