Package contents: 8 pieces of sewer jetter nozzles in 3/8, 1/8, and 1/4 inch sizes, plus 1 piece of 1/4 inch NPT quick connector and 1 piece of 3/8 inch NPT quick connector. Sufficient quantity to meet your needs. Material: stainless steel construction for reliability, durability, and wear resistance. Longlasting and easy to use. Performance: Each nozzle is rated to withstand up to 5000 PSI, enabling effective cleaning of grease residue and debris in various sewer pipes and making cleaning tasks easier. Compatibility: Fits most brands of pressure cleaners and sewer spray hoses. Note that these nozzles are not suitable for garden hoses or ordinary water pipes. Use scenarios: Indoor drains: kitchen and bathroom lines where grease buildup or buildup in piping can cause clogs. Outdoor sewer and storm drains: clearing debris in main lines, yard drainage, and outdoor piping. Commercial settings: restaurants or facilities with heavy grease buildup requiring frequent sewer line maintenance. Quick connectors: Includes 1/4 inch NPT and 3/8 inch NPT quick connectors to support compatibility with a range of hoses and cleaners.