HydroLogic Drain Saddle 1/4" for Stealth-RO & Triton for 1" to 1.5" Under Sink Drain Pipes Drain Saddle - 1/4 Inch' QC for Stealth-RO & Triton Stealth-RO & Triton for 1 Inch to 1.5 Inch under sink drain pipes Drain Saddle - 1/4 Inch' QC for Stealth-RO & Triton