Oil Wiper rings are manufactured to effectively provide positive containment of lubricants within the crankcase. In addition to wiping rings, which essentially scrape liquid from the rod, most wiper packing also contain sealing rings to block gas pulsations or flow through the packing. Oil Wiper Rings are manufactured in several designs, including tangent cut unidirectional, tangent cut bi-directional and triple circle design. They are manufactured from Cast Iron, Bronze, Aluminum Alloy, Carbon, Stainless Steel & Teflon®. Oil Wiper Rings are available for rod sizes 1 1/2" to 8".