250mm Wide Water Flow Wash Brush Head Only Plastic Stock with Rubber Squeegee Blade and Protecta Edges Flagged Synthetic soft Bristle The thread in this brush is an ACME thread - If you are purchasing this head only as a replacement you need to check that your handle has a combatable thread. This brush will fit on the NZ Made extension handles with the BB398P adaptor. Able to be used with a number of different Water Flow Extension Handles Can aslo be used as a dip and wash brush on a standard handle