Model	Length	Oil Capacity	Internal Diameter	End One	End Two	Maximum Operating Pressure
ZH7W20	20 ft.	23.56 cc	0.25”	1/4” NPT	1/4” NPT	700 bar / 10,000 psi
ZH7WC20	20 ft.	23.56 cc	0.25”	ZC72	ZC72	700 bar / 10,000 psi
ZH7W50	50 ft.	58.92 cc	0.25"	1/4” NPT	1/4” NPT	700 bar / 10,000 psi
ZH7WC50	50 ft.	58.92 cc	0.25"	ZC72	ZC72	700 bar / 10,000 psi