5 NEW SYLVANIA 6X4 VACUUM TUBES$25.00 Out of stock SKU: 173448745493 Category: Other Description Additional information Description 5 NEW SYLVANIA 6X4 VACUUM TUBES 268 RB Additional information Weight 1.00 lbs Modified Item No Country/Region of Manufacture United States Custom Bundle No MPN 6X4 Brand SYLVANIA Non-Domestic Product No We Buy New and Used Surplus Inventory - Sell to Us