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Tubing connection has never been easier than with John Guest Quick-Connect fittings. View our simplified Quick-Connect diagrams to see how...
Build Your Own System. Choose from our large selection of Filter Cartridges to meet your exact needs and desires.
Click below on category of filter cartridges that you would like to use, or look at them all! H2O offers you the widest number of options using our UCF series of under sink systems.
UCF under sink systems include John Guest Quick-Connect 1/4" (2) QC to Stem Elbows, John Guest Angle Stop Adaptor, John Guest 1/4" Tubing, Housing Wrench and Bracket.