XERO Membrane Housing Strap and Saddle SetDetails on the XERO Membrane Housing Strap and Saddle Set The XERO Membrane Housing Strap and Saddle Set is available in case you need a replacement for your XERO Pure Water System. It includes the strap, saddle, and 2 bolts. These Housing Strap and Saddle Sets are compatible with the following systems: Pure Pure Plus Pure MAX Pure MAX Plus Pure MAX Power ATOM Triple Pure Wall Mount DI Cart Single DI Cart Double