RGH-100F 20-Gall/100 MBH fully condensing Floor mounted water heater, 96% TE (thermal eff.) 100MBH max, 60 MBH min firing rate, Stainless Steel tank, 160 GPH @ 77*F rise 2"/3" PVC vent, 3/4" NPT water connect*DO NOT USE DI-ELECTRIC UNIONS | B2B Storefront