The GUN-fil® Lubricator series can be used to replace grease fittings in new or existing applications. They can be mounted in any position horizontally, vertically, or inclined at any angle. Mating thread can be either standard pipe thread (NPT) or dryseal (NPTF) threads. All GUN-fil® Lubricators feature single point, spring loaded grease applicator which feeds each individual bearing only the amount of lubricant required. Economical to use valve or grease flow reducer which feeds only while bearing is in motion, flow of grease ceases when bearing stops. Quick visual refill check-colored stem indicator lowers to show when refill is needed. Lubricator comes standard with straight grease fitting. Optional fittings are available as listed below. Standard Features: 1/8, 3/8 or 3/4 inch PTF connections Temperature Rating: Maximum operating temperatures up to 160°F (71°C) For applications requiring maximum operating temperatures of 160°F (71°C) and above, please consult factory