***New Stock @ 10 Aug 2017*** -ZERO TDS can be achieved ***For your beloved marine/ fresh/ shrimp tank*** Selling Brand New In Box 4 stages DI (de-ionized) water filter with media. Refillable resin media in last three stages (save your $$$ in long run). *All filter media (Filter wool, carbon, resin, resin) included. *Free 1 new TDS meter (worth $24) *Free total 2 litre DI resin (worth $48) * No booster pump needed * Zero wasted water (as byproduct) * Standard 10" cartridge (easily inter-exchangeable with international brands) * All connectors included (connector for tap/ hose/ RO/ etc) FYI a brand new 3 stages DI is about $230 retail price and non refillable for some brands. This new refillable 4 stages DI is letting go at $175 only. Collection at punggol/ Serangoon/ Ang Mo Kio. Please contact me for more information through whatsApp or sms. Mobile: Eight Six 12 seven one 82. Thanks. =================================================== Recommended for Marine or fresh water or shrimp tank Filtration Stages: Stage 1: One micron meter physical filter wool. (Change every 6 months) Stage 2: Carbon Block Filter, remove chlorine, organic contaminants, pesticides and chemicals. (Change every 6 months) Stage 3: Refillable DI resin, remove NO3, PO4, etc (Change every 300 - 400 litres of water) Stage 4: Refillable DI resin, remove NO3, PO4, etc (Change every 300 - 400 litres of water) *****TDS zero can be archived********* Note: I personally has been using it for 24 months, for my mixed reef and black onyx clownfish breeding. Very good water, very good price, very good set.