This Stainless Steel Riser Pipe is manufactured from AISI 304 grade stainless steel, chosen for its excellent resistance to corrosion, rust, and chemical attack from borewell water, ensuring a significantly longer service life compared to conventional G.I. riser pipes. The pipe is fitted with a welded seamless threaded female socket on one end and a welded seamless threaded male socket on the other end, allowing successive pipe sections to interlock securely without the risk of leakage at the joints. The seamless welding construction of the socket ends provides superior strength and a smooth, consistent threading surface, minimizing wear during repeated assembly and disassembly. Designed specifically for compatibility with India Mark II and India Mark III hand pump systems, this riser pipe is well suited for installations where higher hygiene standards, corrosion resistance, and durability are essential, such as in aggressive groundwater conditions or where extended maintenance-free operation is a priority. It forms a critical part of the water column that lifts water from the submerged pump cylinder to the surface with each stroke of the hand pump.