Can you spot the PVC in the above picture? Warner Marine has updated their K2 protein skimmers that gives the skimmers a new look. “The latest K-2’s rolling off the line now have a white PVC CNC machined threaded twist-lock. The first ones used black acrylic parts instead of the white PVC. Apparently this new white PVC is easier to machine versus arcylic and there is no retail price difference on these K2 cone skimmers.” We wouldn’t be surprised if more and more manufactures start using more PVC in their designs. Besides being easier to work with (not destroying bits) PVC has a cheaper cost then acrylic, however Warner Marine did a nice job of incorporating the PVC into their acrylic design.