We are one of biggest zeolite 4a manufacturers in china.Zeolite 4a is the builder of non- phosphorus or low phosphorus detergent, it is the good substitute of stpp. Please refer our main specification: 1. Excellent ca ion exchanging rate >320 mg caco3/g, strong soften ability 2. High and stable whiteness >97 , it make your detergent powder whiter 3. Ph1%, 25ph value
