Double-acting, 2-stage telescoping cylinder requires less space than other cylinders. It is rated for pressures to 125 psi with 3/4, 1 1/2, and 2 1/2 in. effective bore sizes for strokes to 60 in. NFPA-mountable cylinders are made of anodized aluminum; stainless steel optional. TRD Manufacturing Inc., (815) 654-7775, www.trdmfg.com