These items have never been used. Although they may no longer be in their original boxes. I'm selling these in quantities of 10. ASTM C2683/D3261. MTL PE-2406 Yellow. Some of the boxes may have a mixture of U.S. Poly and Uponor parts. If that is the case I will let the buyer know prior to shipping them. Shipping is done every two weeks. If you order 0 or more please message me and we can try to work out an earlier shipping date. Also, there is a handling fee as the warehouse is 30 minutes away from me. All weights for these items are not exact so if you overpay for shipping at checkout, I will send you a partial refund for the difference of your payment and what I paid for shipping. Please feel free to check out my other oil field supply listings. Thanks for looking and God bless!