Deep well Hand pump as per Bureau of Indian Standard Specifications IS-9301: 1990 with 63.5mm dia cast iron brass sleeved cylinder assembly, Deep well Hand pump as per Bureau of Indian Standard Specifications IS-13056: 1991 r Bureau of Indian Standard Specifications IS-13056: 1991 – Amendment 6, with 50mm dia cast iron brass sleeved open top cylinder assembly with extractable plunger and foot valves assemblies.