Yes, you need to be particular about the design elements if the 7075 seamless tube is for a high-pressure application. These design considerations are paramount to the safety and functionality of the system in question, given the high pressure involved. Apart from the dimensions and the material of the tube, the seamless tube is also crucial. At Fonnov, we have varying outside diameters and wall thicknesses for the 7075 aluminum seamless tube. We have these variations because we know that the specific combination of these two parameters is essential to the integrity of a tube and the system as a whole. The 7075 aluminum is strong, but a project may have specific property requirements, which can tempers of the alloy may address. To prevent weak points in the material, ensure that the manufacturer employs stringent quality control that rules out any flaws in the material.