Beaver Assorted Pack of Standard O-Rings - 10 Pack A variety of ten O-rings to suit most common diving equipment applications. Contents: 10 per pack: From left to right on our image:   1 X 120 Cylinder to Cylinder Valve O Ring M25 25 x 3.54mm 2 X 614 Cylinder Valve to Regulator O Ring 12 X 2.62mm Din 2 X 111 Cylinder Valve to Regulator O Ring 11 X 2.62mm INT 1 X 013 O Ring 1/2\" Adaptor and Low Pressure (LP) Fittings 10.82 x 1.78mm 1 X 010 O Ring for Swivel Adaptors and LP Hoses 2 X 003 O Ring for High Pressure Hose to Pressure Gauge Swivel Bar