Features: Broad Compatibility: This vacuum breaker kit suits a wide range of models, including 110, 111, 130, 131, 147, 148, 149, 210, 248, 506+, 508+, 509+, 510+, 511+, 547+, 548+, 557+, 558+, 606, 647, and 648, making it an ideal replacement part for your mobile home or travel trailer toilet. Effective Leak Prevention: Designed to efficiently block wastewater backflow and reduce odors, this product ensures a clean and hygienic environment in your mobile home or travel trailer, offering peace of mind during your travels. Easy Installation: The installation process is simple and direct; just remove the damaged part and replace it with this new unit, requiring no additional tools or complicated steps, saving you time and effort. High-Quality Build: Constructed from superior, strong materials, this vacuum breaker kit is built to withstand frequent use and challenging conditions, providing reliable service for your mobile home or travel trailer toilet. Essential Travel Component: As a vital part for mobile home toilets, this vacuum breaker kit enhances your outdoor experience by providing convenience and comfort, making it a top choice for every travel enthusiast. Specifications: Material: plastic+metal Part number: 385316906 Length: about 3.85cm/1.52inch Thread: 1/4-20 Package Includes: 1 set Toilet Vacuum Breaker note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.