Premium quality solid brass gas diffusors 54A Tweco®, KP-54A Lincoln® and Firepower® FP54A style for aluminum wire applications on all Tweco® style #3 & #4 mig guns. Packaged indivudually 54A Tweco Gas Diffuser #3 & #4 Mig Gun (1-Pack) N-54Elsewhere: $ 8.49Welding Direct Price: Additional discounts may be available for volume orders. To speak with a customer service representative for details, call, toll free, 1-866-568-3170 . Welding-Direct.com is in no way affiliated with the above named manufacturers. References to named machines, torches, welding guns and numbers is for your convenience only. Most parts advertised for sale are made by or for Welding-Direct.com; other parts, as indicated, are original parts (OEM) and are simply being resold by welding-direct.com. Copyright 2004 Welding-Direct.com. All rights reserved. Details on our Free Delivery policy may be found on our Information page.