Zero International 971AA-BIO 47" Clear Anodized BioWall Finger Guard Antibacterial Gasketing - White

The 971AA-BIO mounts on the push side of the door, with exposed screws through the aluminum retainer. Push-side mounting covers the hinge gap on the face people actually reach for, so plan your fastener layout on that face and make sure nothing on the pull side (closer arm, pull plate) conflicts at the hinge stile.

The rubber itself. BioWall rubber is a non-toxic formulation that inhibits and suppresses microbial growth, giving long-lasting defense against bacteria, fungi, molds and other microorganisms. A standard finger guard protects the hinge gap and nothing more. If the opening is in a hospital, nursing home, doctor's office, veterinary facility, child care center or school, the BioWall rubber is the reason to spec this one.

Both are door edge finger guards that cover the hinge gap to protect hands and fingers. The Zero 971AA-BIO uses BioWall antibacterial rubber, a non-toxic formulation that inhibits microbial growth and is aimed at hospitals, nursing homes, doctors' offices, child care facilities and schools where hygiene standards are highest. It comes in a 47 inch length with a clear anodized aluminum retainer and white rubber, mounts on the push side, and uses exposed screws. The Trimco K39 is a finger guard series without the antibacterial rubber feature, so for an infection-control specification the BioWall rubber on the 971AA-BIO is the distinguishing element.

It comes in a 47 inch length with a clear anodized aluminum retainer and white antibacterial rubber. Forty-seven inches covers the lower hinge-side gap, which is the reach zone for children, so it is the common choice for classroom and day care doors rather than full door height.

It is built for it. The rubber carries natural resistance to abrasion, washing, and exposure to UV radiation and various chemicals, and is made to withstand surface wear while keeping its antimicrobial protection. That matters on a health care or school door that gets wiped down several times a day, where an ordinary vinyl guard chalks and cracks.

Yes. Zero's Bio-Wall technology is available as a special order for gasketing, so a facility standardizing on antimicrobial materials can carry it beyond the finger guard to the perimeter seals on the same openings.

Trimco's K39 Series finger guards are the other line we carry for hinge-gap protection. They are the option to look at when the job just needs the pinch point covered and the hygiene specification is not driving the choice. If the spec calls for antimicrobial material, the Zero BioWall rubber is the one that answers it.

The BioWall rubber on the 971AA-BIO is the reason to specify it - the antimicrobial infusion is what suits it to hospitals, nursing homes, veterinary facilities and child care settings. On an ordinary office, school corridor or multi-family opening where hygiene is not a driver, a standard finger guard such as the Trimco K39 series covers the same hinge-gap pinch hazard without the antibacterial rubber formulation.

No. The 971AA-BIO is a finger guard - a push-side mounted guard with a clear anodized retainer and white BioWall rubber that closes the hinge gap so hands and fingers cannot be pinched. It is not a door bottom, astragal, or perimeter smoke and weather gasket, and it should not be substituted for one. A comparable finger guard such as the Trimco K39 series serves the same pinch-protection role, not a sealing role; if the opening needs air or smoke sealing, that is separate gasketing installed in addition to the finger guard.

Functionally both protect the hinge gap, but they will not match visually or in material. The Zero 971AA-BIO pairs a clear anodized retainer with white BioWall antibacterial rubber and is supplied in a 47 inch length for push side mounting with exposed screws. The Trimco K39 is a separate finger guard series. For a facility where the antimicrobial rubber is part of the infection-control specification, standardizing on the BioWall version across all openings keeps both the appearance and the hygiene performance consistent; mixing series means some doors carry the antibacterial rubber and others do not.

Commercial. The 971AA-BIO is catalogued for commercial openings, and the applications it is built around are institutional ones: hospitals, nursing homes, doctors' offices, veterinary facilities and schools. It is not sized or intended as a residential item.