Design for Manufacture and Assembly (DFMA) consists of two main components which are Design for Assembly (DFA) and Design for Manufacture (DFM). DFMA is an important methodology to review the design for product evaluation. It is very significant in reducing number of parts to be assembled in a product. This can contribute to the reduction of manufacture cost of part, assembly time and material. Therefore to reduce the product cost, DFMA-Lucas Hull methodology is applied by selecting a consumer product which is water nozzle as product case study. The Teamset-Lucas Hull base software is used to evaluate the product. The original design is reviewed; improved and redesigned effort is performed for the product evaluation. The significant result shows the new design of water nozzle is achievable with fewer parts from thirteen (13) to eight (8) parts. Then it will be effected the product cost to be reduced from RM48.26 to RM20.76. This method also eligible to be applied to manufacturing industries in order to improve their design effectiveness.