Welded cylinders feature a bronze impregnated Teflon wear strip on the piston that wears in and provides low breakaway friction. Modular design allows for varied sizes to fit most applications; custom sizes available. They come in standard bore sizes from 11/2 to 6 in and rod diameters from 3/4 to 21/2 in. They are rated for pressures to 3000 psi and come in a variety of mounting configurations.Garrison Mfg., (714) 549-4880, www.garrisonmfg.com