(1). Aluminum/ Brass material.

(2). Cast or Forge.

(3). Different size to meet your request 

(4). Short tail and long tail 

(5).The surface is oxide treatment, anti-corrosion.

(6). Reasonable structure, easy connection tightly and with high scalability.

(7). Strong strength.

(8). Used for connecting fire hose with the fire hose, fire truck, fire hydrant, water gun or nozzle.

	Number	D1	D	d	L	Number
	1	∅115	∅156	∅100	85	4''German type self-locking hose coupling
	2	∅115	∅156	∅101.8	85	4''German type self-locking hose coupling
	3	∅115	∅156	∅103.5	85	4''German type self-locking hose coupling
	4	∅148	∅196	∅126.5	90	5''German type self-locking hose coupling
	5	∅148	∅196	∅126	90	5''German type self-locking hose coupling
	6	∅148	∅196	∅127.5	90	5''German type self-locking hose coupling
	7	∅160	∅215	∅150	180	6''German type self-locking hose coupling
	8	∅220	∅280	∅203	120	8''self-locking hose coupling
	9	∅278	∅339	∅253	132	10''self-locking hose coupling
	10	∅278	∅339	∅253	175	10''Double hoop self-locking hose coupling
	11	∅316	∅386	∅293	140	12''self-locking hose coupling
	12	∅316	∅386	∅304	200	12''Double hoop self-locking hose coupling
	13	∅366	∅450	∅350	170	14''self-locking hose coupling