Please what are your minimum order quantity for your products. And what are your best prices for the following filters: LF 3737, LF16011, LF16015, LF670, LF3349, LF777, LF3000, LF9001, LF9000, LF9009, LF700, LF701, LF3722, FF5327, FS1040, FS1006, FS1280, FS1251, FF5052,FF5018, FF5507, FF5272, FF5485, FF167, WF2126, WF2073, WF2074, WF2075, WF2076, WF2077, WF2096, AH1100, AF409K, Please, I will be happy to do business with if you can give me more affordable prices and very very good quality filters. my major concern is the quality and the price. I would be also happy if you can send me your catelog first.