Yellow 1 1/2" x 25' Rubber Hose (Alum NH Couplings) Female Threads_NYFD 3 inch NH / NST Color_Red Why was the Swivel Model:3114 (8.0 TPI x 3.000 OD) 15S1550MF

3 inch NH / NST fittings measure approximately 3 5/8"

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

All weather performance from -35° F to 118° F

Screen and Chain

The present name was adopted in 1969

Yellow 1 1 2" x 25' Rubber Hose (Alum NH Couplings) Female Threads_NYFD 3 inch NH NST Color_Red Why was the Swivel Model:3114 (8.0 TPI x 3.000 OD) 15S1550MF 3 inch NH NST fittings measure approximately 3 5 8" 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