Our SENTINEL Pro Package delivers premium whole-home water softening and purification, featuring the advanced GUARDIAN softener with specialized resins and media to remove harmful contaminants, and an integrated AQUACARB purifier for crystal-clear water throughout your Houston-area home—all backed by a lifetime warranty. For ultimate peace of mind, United Water Softeners’ exclusive FREEZE PROTECTION POLICY is included with our SENTINEL Pro Package. NEVER worry about repairs or replacements again. Ask your Water Treatment Specialist today!