Ocean State Water Filtration Solutions

Our Systems

Filtration built around your home's water

Reverse Osmosis Systems

Under-sink point-of-use systems that deliver crisp, bottled-quality water straight from your tap. Filters down to 0.0001 microns, removing PFAS, microplastics, lead, fluoride, and high TDS. Choose the standard 5-stage system or upgrade to a 6-stage unit with alkaline remineralization for better taste and balanced pH.

• Point-of-use under-sink RO — ideal for all homes, city or well water
• Removes high TDS, PFAS, microplastics, lead, and fluoride
• 5-stage: sediment, dual carbon, RO membrane, post-carbon polish
• 6-stage: adds alkaline remineralization for improved taste & pH
• Dedicated faucet & storage tank

Whole Home Filtration

Whole-home solutions tailored to your water source — water softeners, carbon filters, iron/manganese filters, sulfur/iron filters, and acid neutralizers.

• Water Softener (Resin + Brine Tanks) — City or well water with hardness >7 GPG; stops limescale and protects appliances.
• Backwashing Carbon Filter — Municipal water with chlorine taste/smell, VOCs, or bad odors.
• Air-Injection Iron/Manganese Filter — Well water with rust stains or dark specks from iron/manganese.
• Air-Injection Sulfur/Iron Filter — Well water with rotten-egg smell (H₂S) and heavy iron staining.
• Acid Neutralizer — Well water with pH <6.5, blue-green stains, or corroding copper plumbing.

Lifetime Warranty & Service

Every system we install is backed by a lifetime warranty on the tanks and equipment, with local service you can actually reach when you need it.

• Lifetime warranty on USA-made tanks
• Local, licensed & insured service team
• Filter change reminders & scheduling
• Straightforward pricing, no subscriptions

Service Area

All of Rhode Island + nearby MA & CT

We install and service throughout Rhode Island and the surrounding Massachusetts and Connecticut border towns. Not sure if you're in range? Give us a call.

• Providence
• Warwick
• Cranston
• East Greenwich
• North Kingstown
• Narragansett
• Newport
• Barrington
• Bristol
• Smithfield
• Coventry
• Westerly
• Attleboro, MA
• Seekonk, MA
• Fall River, MA
• Plainfield, CT
• Putnam, CT
• Stonington, CT