ElectricianSupplies.com stocks 1,000's of items including Fuse Refill Units . Quality Customer Care is our first priority - try calling us at 800-448-2014. We will ship your Fuse Refill Units in #time#. Count on dependable delivery and shipment tracking from UPS and federal Express. We appreciate the opportunity to serve you! Join our 80,000 satisfied commercial and residential customers.