Includes: 5-gallon tank, gate valve/cap, and clear hose to make engine winterization quick and easy. Designed for boat owners to winterize inboard and outboard engines directly on the trailer without professional help. Use with STAR BRITE Winterizing Antifreeze for optimal engine freeze protection during winter storage. Step-by-step instructions ensure easy setup and efficient engine winterization for all users. Works with garden hoses, ear muffs, or flushing attachments for seamless antifreeze application.