Diffuser with BS Inst. Male fitting: Model No. 34-2136 Used when flushing and when flow testing high pressure hydrants to diffuse water stream. To make a direct enquiry in relation to any of our products or services, please complete the below enquiry form and we will be happy to assist. To find out more about our online payment options please click here. TSI are suppliers of flow meters to a global distribution network - should you wish to find out more about our distributors please click here. What would you like to do?Purchase a product.Receive product support.Receive product pricing.Find out about becoming a distributor.Make a general enquiry. +353 (0)57 866 3852 Unit 1, Portlaoise Enterprise Centre, Clonminam Business Park, Portlaoise, Co. Laois, R32 VK07, Ireland.