Aluminum 5" Storz to 2 1/2" Storz Adapter Female Size_1 1/2 Inch The most common fire fitting

The most common fire fitting thread in the United States is 2 1/2 inch NH /NST

Dry hydrant sizes are determined by your local fire department

The fixed end cover is fixed

A slip over hydrant cover designed to identify fire hydrants that are out of service

Gasket installed

Aluminum 5" Storz to 2 1/2" Storz Adapter Female Size_1 1/2 Inch The most common fire fittingStorz Head component shall be forged from Alloy 6061 aluminum and heat treated to T6 temper. Adapters and components meet the requirements of NFPA 1963. Locking Storz are only available on 4, 5, and 6 inch. Locking springs prevent unintentional disconnects. Locks are stainless steel. The Safe Water Drinking Act section 1417 requires "Lead Free" products to be a minimum of 99. 75% lead free. Download Spec Sheet