Sealing solutionsExpresSeal hydraulic and pneumatic seals range from 0.250 in. ID to 60 in. OD or 6.35 to 533 mm. Profiles include O-ring, wiper, shaft, back-up, guide, piston, rod seals, and heavy-duty U-seals; piston cups; vee packing seals; T-seals; piston seals with energizer; wiper rings; back-up, and wear rings. Apple Rubber Products, ExpresSeal Div., (800) 446-4773, www.expresseal.com