Profile: Thomas Wright/Thorite Group Ltd. supplies air compressors, air tools, pneumatics and process products. We specialize in the maintenance & repair of air compressors, air tools, and air operated diaphragm pumps. The hydrovane series rotary vane air compressors are versatile, reliable, and cost effective. They can be found in trains, ships, engineering, distilling, brewing, packaging sites, and in large and small industrial units throughout the world. Our SMC vacuum filter replacement elements contains 10 elements, and 10 O-rings in each element set.