Introduced by O.G. Dixon in 1940s
Made of metal mesh or metal plate in "Q" shape, the diameter-to-height ratio is 1:1, the diameter is same with the ring height
With the capillary function of the wire mesh, the liquid can be distributed excellently, and remove the channeling phenomenon
Available in sizes(mm) of 1.6×1.6, 3.2×3.2, 6.4×6.4, 3×3, 4×4, 5×5, 6×6, 7×7, 8×8
Available in materials of metal mesh, copper mesh, brass mesh, phosphor bronze mesh, oxidized phosphor bronze mesh, iron mesh, galvanized mesh and metal steel plate