2 1/2 inch quad stack tips are machined from 6061-T6 aluminum seamless extrusions from the USA. The finish is a polished hardcoat anodize to MIL-A-8625 Tyle III, class 1. These smooth bore tips give quick availability to increase tip size quickly and effectivly.
NH or NST: National hose or national standard thread is often referred to as fire hose thread as this is by far the most common thread in use today by fire departments.
