Tweco Diffuser - 54A Pkg of 2 - Genuine Tweco #54A MIG diffuser. Fits Tweco No. 3 and No. 4 MIG guns. Free standard ground shipping within contiguous U.S. Availability: Usually ships the next business day. 54AB$11.34 All prices shown are in U.S. Dollars The Cyberweld® name, logo and the slogan "Weld with your mouse"® are registered service marks of: J.W. Goodliffe & Son, Inc. 1900 E. Elizabeth Ave. P.O. Box 4370 Linden, NJ 07036 (800) 419-0580 FAX (908) 486-9366 Phone answered live M-F 8:00am to 4:30pm EST © 2000 - 2010. All rights reserved.