Using low-cost clay supports as substrates, ceramic-LTA zeolite composite membranes (Z1-Z4) were fabricated with hydrothermal crystallization. The composite membranes were achieved with variations in the sequential zeolite depositional steps. For Z1-Z4 membranes, various characterization techniques such as thermogravimetric (TG), particle size distribution (PSD), X-ray diffraction (XRD), and field emission scanning electron microscopic (FE-SEM) analysis were applied. For the Z1-Z4 membranes, the pure water permeability, porosity, and average pore size varied from 1.22 x 10(-7) to 1.19 x 10(-8) m(3)/m(2)s kPa, 30-23%, and 215-76 nm, respectively. For the Z4 membrane, ultrafiltration experiments were conducted at a pH of 2.5 and transmembrane pressure differential of 207 kPa using aqueous bovine serum albumin (BSA) solutions. The optimal flux and rejection correspond to 4.54 x 10(-7) m(3)/m(2)s and 80%, respectively.