Under Sink Filtration Systems

Clean, great-tasting water at your kitchen tap is easy with under sink filtration systems. These compact point‑of‑use filters mount out of sight and connect to your cold water line, delivering purified water through a dedicated faucet or your existing tap. They help reduce chlorine, lead, PFAS, VOCs, pesticides, cysts, and microplastics, improving taste and odor while cutting plastic waste and bottled‑water costs.

Choose the right technology for your needs. Carbon block and multi‑stage systems target chlorine, sediment, and many chemicals. Reverse osmosis systems lower TDS and heavy metals and can curb scale, with options for tanked or tankless designs and add‑on remineralization. Some setups integrate UV for microbiological protection, useful for well water.

Shop smart by checking certifications and specs. NSF/ANSI 42 and 53 cover taste, odor, and health claims; 58 applies to RO; 401 covers emerging contaminants. Compare micron ratings, flow rate (gpm) or GPD for RO, filter life (months or gallons), and footprint. Look for quick‑change cartridges, metal fittings, braided hoses, a lead‑free faucet, and leak detection or auto shutoff for peace of mind.

Most DIYers can install in an afternoon. Measure your space, mount the bracket, tee into the angle stop with a feed‑water adapter, and use push‑to‑connect tubing. If adding a separate faucet, drill a clean hole or reuse an accessory knockout. Helpful tools include an adjustable wrench, screwdriver, step bit, and plumber’s tape. Always flush new filters thoroughly.

Plan for simple maintenance. Replace sediment and carbon cartridges every 6–12 months, sanitize housings annually, and change RO membranes every 24–60 months. Inspect O‑rings, tighten fittings, and keep spare filters on hand.

Under sink water filters can also feed refrigerators, ice makers, and coffee stations, letting you enjoy cleaner water throughout your kitchen. Many models offer quick-change heads and filter-life indicators for hassle-free upkeep and long-term value.