One side of this high pressure hose is a professional style M22 coupling, it could immediate connect to the pressure washer. And the other side is style bayonet click coupling.it allows you to quickly click into the trigger and release the hose by pressing the yellow button on the trigger . PLEASE NOTE: The pressure washer hose is domestic pressure washers with screw thread. If your hose connects to the pressure washer by screwing on and there is a yellow button(not black) in the trigger which allow your hose toout and disconnect, then this hose is the of your machine.Please Note connector size before purchasing OR contact us confirm the hose model before purchasing. for K2 ,Not fit the Old Model.M22-Quick Conntector Type Fitting Quick Connector for pressure washer, allow immediate connect or release the hose by pressing the lock button on the trigger .Flexible hose with -protection.Clean your blocked pipes, drains and rain gutters easily and quickly. High pressure extension hose for greater flexibility with rubber cover, durable and abrasion-resistant,for pressure washers with screw thread.High tensile steel wire braid pressure washer hose with rubber cover. Available on pressure washers with pressure ranging from 1000 to 2320 PSI, for cold water only.This high-pressure hose can consumer pressure washers with an M22 connection.This hose does NOT fit for the older machines with a Black C Clip. Please note and check whether both connections are compatible with your machine and before purchasing. Make that your hose connects to your pressure washer by screwing on and there is a yellow button(not black) in your trigger which allow your hose toout and disconnect. Pressure 2320PSI. Connection of pressure washer: M22 Female Thread Connector Use in cold water application. For electronic cold cleaning machine. Light weight hard wearing nylon braided drain/sewer hose. perfect for cleaning and unblocking drains and pipes. Suitable for: K2(), , K4, K5, K6, K7 car washer. NOT Compatible for K2.350,K2.98 M PLUS,K2 130 ,K2 360,K2 CLASSIC,K2 FOLLOW ME,K2 Home,K2 HORIZONTAL,K2 Premium Home,K2.00 PLUS,K2.02,K2.03 PLUS,K2.030,K2.050,K2.06,K2.08 PLUS,K2.100,K2.120,K2.14,K2.15,K2.17 ,K2.20 M,K2.200 BALCONY,K2.21 M T 50,K2.29M,K2.300,K2.300 ,K2.300 T 50,K2.300 T 50 ,K2.36 M,K2.36 M T 50,K2.38 D PLUS,K2.38 M,K2.38 M T 50,K2.40 D PLUS,K2.40 ,K2.400 T 50,K2.420 ,K2.54M,K2.75 PLUS,K2.87 PLUS,K2.89,K2.90 M,K2.900 M PLUS,K2.900 M T 50,K2.91 ,K2.91 ,K2.91 T 50,K2.94 ,K2.97 M,K2.98 M T 50,K2.99 M PLUS,K2.99 M PLUS T 50,K2.99 ,K205 M,K205 PLUS,K207,K210 PLUS,K2-150 colour:black Material:plastic size:Quick connector: M22 (14mm) Length : 15M SIZE: I.D. : 0.34 inch/8.7mm; O.D. : 0.47 inch/14mm Package Contents: 1*roll Washer Hose Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.