Aluminum 4" Storz x 4" Swivel Female NH Thread Male Threads_NPSH and is popular with chemical

and is popular with chemical or salt water applications

This strap adjusts from an 18" circumference out to 32"

Drafts down to 2" from the bottom

Coast Guard and other Military branches

Aluminum 4" Storz x 4" Swivel Female NH Thread Male Threads_NPSH and is popular with chemicalStorz 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