Hydro-Genics #ESS-LD-10-34 Water Filter Housing Accepts filter cartridges 9-3/4" to 10" length by 2-1/2" to 3" diameter. 3/4" NPT inlet & outlet ports, 1/4" NPT drain port Solid stainless steel construction. Maximum Operating Pressure/Temperature: 150 psi, 210 degrees F