BS0256-150 HMR. CNK. DBL. SHT. BEND HK.&BN. 152mm ( 6" ) BS0257-200 HMR. CNK. DBL. SHT. BEND HK.&BN. 203mm ( 8" ) BS0258-300 HMR. CNK. DBL. SHT. BEND HK.&BN. 305mm ( 12" ) BS0259-400 HMR. CNK. DBL. SHT. BEND HK.&BN. 406mm ( 16" ) BS0260-500 HMR. CNK. DBL. SHT. BEND HK.&BN. 508mm ( 20" ) BS0261-600 HMR. CNK. DBL. SHT. BEND HK.&BN. 610mm ( 24" )