Actually we are buying filters in China but we want to change the supplier because they do not produce all lines that we need. Attached a quote of itemsthat we need with good quality and competitive prices for you to quote us.Also we need if is it possible you to send us some samples to check them.Further we would like the filters in black color, with our brand, part number (photo attached) and the boxes same as the photo attached.We would like to know some information about your company.Does your company produce filters for trucks too, but I need you to send us the OEM because we are going to introduce this line?Does your company have some quality certification?Which is your order time delivering?Which is the minimum order of your products?Which are the payment terms?Where are you located and what port of shipping you use?Is the quality in your products same as the samples always.Which countries in America do you sell your filters or if you have any distributor in Costa Rica?Can you send with the first order some book catalogues (not CD) for our customers?Look forward to hearing from you.