Description
1- with PX500 and PX500-A Reverse Osmosis System under sink. 2. The 1st stage: advanced 2-in-1 composite filter(PPC sediment filter) Advanced 2-in-1 composite filter, blocks fine debris and reduces particles such as sand, silt, rust and other insoluble impurities from water. Conditions the water and prolong the service life of RO membrane. 1st stage filter for PX500(B08R8G8M8Q) and PX500-A(B08R8FD43K) undersink reverse osmosis water filter system. QUICK CHANGE & TOOL FREE: ASR311 can be replaced only with single turn after shutting off the power supply. Super easy requires NO tools and saves your time and energy. Please replace the ASR311 composite filter every 6 months. (Please kindly note that the period highly depends on your feed water quality and daily water usage)