Halo Eyewash. Halo delivers the most effective eyewash coverage and spray pattern . Barrier Free. Wall Mounting. Chrome Plated Brass Pipe & Fittings for Bright, Mirror Finish. 1/2″ NPT Water Supply . ABS Plastic Eye or Eye/Face Wash. Universal identification sign and inspection tag included. Complies with ANSI Standard Z358.1 when installed and used properly. Manufacture’s limited warranty.