AMH1K-6ODRZT1 For TANKLESS HEATER WITHOUT BUILT-IN PUMP AM7-SU1ZLT1 Stainless Union Circulator with 3/4″ Male Tailpieces, built-in timer, 10 Ft line cord, pump bypass connection, check, flow control, hose, Bypass Tee 3/4” FNPT x 3/4” MNPT x 3/8” OD Compression. AMK-ODR bypass valve kit: Bypass valve, hose, Tee. Valve on/off 95°-104°F Installs under-sink in COLD LINE, no power required under sink. Patented