Complete set of 4 filters cartridges including the RO membrane for compact systems with pressure tanks and countertop Inline RO direct flow systems - Buy online - Aquasky ROT-3, Aquasky ROT-4, PA-E RO 132 Reverse osmosis water filters replacement with membrane - Countertop all inline water systems compact cartridges. This set of 4 filters for over-the-counter inline reverse osmosis systems filters. ( Please make sure to send a clear picture of your water system before or after placing an order) we will make sure it's the correct filters before shipping.

stage 1- Inline Sediment Filter 2"x10" 5 Micron 1/4" in-n-out standard size.

Stage 2- Inline Granular Activated Carbon T28 Carbon Pre-Filter 2"x10", NSF. 1/4" in-n-out standard size.

stage 3- 100% organic RO Membrane, 50 - 75 GPD.

Stage 4- Inline Granular Activated Carbon T29 Coconut Carbon Pre-Filter 2"x10", NSF. 1/4" in-n-out standard size.