Profile: Owl Separation Systems specializes in gel electrophoresis equipment and accessories. Our PCH-1 pipette can holder is designed to hold standard glass and disposable pipettes in square or round cans. Holders are constructed of sturdy 1/4" thick acrylic. Our Chameleon™ casting dam can be used in conjunction with several of our horizontal gel casting systems. The dam blocks off a portion of the UVT gel tray to allow shorter gels or gradient gels to be cast and run in one device, thus eliminating the need for tape.