All sizes except 1/2" comply with Mil-Spec A-A-59326 for interchangeability
1/2" x 1/2" are not specified under Mil Specs
Polypropylene material is glass-filled for added strength and durability
Locking feature using safety clips to prevent disconnection during use on all sizes except 1/2"
All 4" size female couplers are supplied with three locking handles to provide added stability
WARNING: This product can expose you to chemicals which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov