NEOPERL Careguard™ is the perfect combination of hygienic features for faucet attachments, with built-in AgION™ anti-microbial protection, laminar stream (non-aerated) and screenless construction (no wire-mesh screen prone to lime build-up). Careguard™ also conserves water (1.5 gpm max) and is available in regular and tamper-proof housings. Certified to ANSI/NSF 61 and ASME A112.18.1M. NEOPERL, Inc. Circle 1.