All under-counter water filtration systems sold here at WaterFilter.com.sg (except SoPure Water Filters) comes with parts and accessories required to install the water filters. Other than the water filter itself, the faucet is something that might matter to you too, you may want to know how much space is needed. Here are some images of the package that comes with the Twist-Locks (under-counters). 

 

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IMG 7056

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To continue shopping, go to 
http://www.waterfilter.com.sg/shop/

To purchase Twist-Locks filtration systems, go to 
http://www.waterfilter.com.sg/shop/under-sink.html