Durable: The replacement spray gun is made of plastic and rubber, resistant to abrasion and aging, and suitable for K2, K3, K4, K5, K6, K7 Interface: Compatible with Quick Connect system, not C-Clips system. Please check the list of compatible models and interfaces to ensure that this replacement part is compatible with your device. Easy to use: Trigger, compatible with high-pressure hoses without quick connects, and gives you full control of the task at hand. U-shaped: U-shaped clip to hold the high-pressure hose in place, compatible with high-pressure hoses without quick connects Wide applications: The spray gun high pressure water is connected to a high pressure hose with a clean high pressure machine and can be used as a washing water sprayer, garden irrigation tools, for car washing, house cleaning, garden watering, agricultural irrigation, window washing, plant watering, etc.