Thanks for the info. Mine are stamped with the Deka logo on them. These are legit Deka/Siemen 80lb high impedance injectors. I bought them from Power Adders Solutions. They stand by their parts and said that all their injectors on average are within no less than a pound of there rating. That's 1% on average loss. Out of 10's of thousands they sell,that's a pretty good success rating. Thanks for all the free bumps on this,now hopefully a buyer will take these off my hands.