ISPRING HB28B 20-Inch Big Blue Water Filter Housing 1-Inch Outlet/Inlet Heavy Duty</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Pressure Release Button</li><li>1" inlet/outlet</li><li>Package includes wrench to open and tighten the housings</li><li>Fit standard size filtration replacement cartridges: 4.5"x20"</li><li>Maximum Temperature: 100DegreeF (37.8DegreeC) Maximum Pressure: 90 psi (6.2 bar) Cartridges are recommended to change every 6 months (not included)</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41kwhvPQtwL.jpg' noproxy></br>