The Pentair 474059 is a Tube Sheet Coil Assembly Kit. It is compatible for use with the 250NA 250LP MasterTemp Heater. It is a genuine Pentair product.
Gasket, Raypak 105A/105B/183A, Heat Xchg, 3/4"ID, 1-1/8"OD, qty9
Price: $25.50
Raypak 406A Digital Natural Gas Heater #50 0-2K CU-NI
Price: $5,809.45
Copper Tube Bundle For Model 406A, 407A Low NOx Heater
Price: $1,578.97
B-R406A-EN-C #50 NG IID 0-2K ASME HEATER
Price: $6,303.84