55mm Snap-On 4 Gallon Clear PET Preform for Water Dispenser is purpose-built for blow molding into 15L large-capacity water bottles, making it an optimal choice for residential and commercial water dispenser systems. Engineered from clear, food-grade PET, this preform ensures high transparency, strength, and safety for daily water consumption. It is compatible with semi-automatic and fully automatic blow molding machines, offering multiple weight options to suit different performance and cost requirements. The snap-on neck finish supports fast and secure capping, and optional plastic handles and caps enhance user convenience. Provide regional water plants and drinking water service providers with cost-effective and stable wholesale-grade preform solutions. Multiple colors can also be customized to suit brand image and market differentiation.