In this work the microwave response of an integrated structure composed of coupled magnetostatic wave (MSW) straight edge resonators (SER) based on an epitaxial yttrium iron garnet film and measured by means of a ferromagnetic resonance (FMR) experiment has been studied. By using the FMR spectra, a simulation of microwave filters based on integrated SERs has been performed, demonstrating great potential in the realization of planar MSW tunable devices.