This is a replacement back foot set for Karcher K4 and K5 series Full Control pressure washers. It serves as an upgrade from the original plastic outlet to a more durable metal part, addressing potential faults with the plastic component. Please ensure your model and serial number, found on the base of your pressure washer, match the compatible models listed below. Compatible Models: K4 FULL CONTROL CAR & HOME EU (1.324-008.0) K4 FULL CONTROL CAR & HOME GB (1.324-009.0) K4 FULL CONTROL CAR EU (1.324-007.0) K4 FULL CONTROL CH (1.324-001.0) K4 FULL CONTROL EU (1.324-000.0) K4 FULL CONTROL GB (1.324-002.0) K4 FULL CONTROL HOME EU (1.324-003.0) K4 FULL CONTROL HOME GB (1.324-005.0) K4 FULL CONTROL HOME WOOD EU (1.324-006.0) K5 FC LITE GB (1.324-502.0) K5 FULL CONTROL CAR & HOME EU (1.324-505.0) K5 FULL CONTROL CH (1.324-501.0) K5 FULL CONTROL EU (1.324-500.0) K5 FULL CONTROL FLEX EU (1.324-509.0) K5 FULL CONTROL FLEX HOME WOOD