You will see the reference numbers of the filters those we are buying from China. We hope you can supply these filters. Please send us your prices and also pictures of the models. Samples Definition Quantity / month 1 5984044 5.000 2 5940899 1.000 3 W75/2 5.000 4 7701066680 , 8200619855 1.000 5 77362340 1.000 6 73500049 1.000 7 PH5796/LS 218 5.000 8 G12-1 10.000 9 7700217026 10.000 P.S. If you are in Guangzhou or near Guangzhou, we would like to meet you with our visit to your factory.