Click to enlargeTankless Accessories

Rheem has been a trusted brand since 1930, offering high quality water heating products and reliable customer service for your lifestyle and peace of mind.



Click to enlargeTankless Water Heater Recess BoxFor use with 74X and 199X outdoor tankless models only. This new accessory enhances an outdoor installation by protecting the tankless unit from damage and tampering. It also provides additional protection from extreme weather. Rough-in dimensions: 41" high, 17" wide, 10" deep. Part #RTG20038

RTG20038$384.67
Click to enlarge3/4" Hot/Cold Water Isolator Valve Kit.Water Service Valves: 3/4" hot/cold water isolator valve kit. For use with all tankless models. These hot and cold water service valves simplify installation and service by combining multiple valves and connections in a single part. Part #AP13892

AP13892$142.98
Click to enlargePressure Relief ValvePressure Relief Valve Also known as the T&P valve. For use with all tankless models. Part #AP12993C

AP12993C$18.00
Click to enlarge3-inch Horizontal Vent Kit3-inch Horizontal Vent Kit: Includes RTG 20000BM Adapeter, (2) two RTG200001C 90 degree elbows, RTG 20001D 12" extention, RTG 20001F 6" - 19" adjustible extention, RTG 20001B Horizontal Wall Thimble, and 90 Degree Elbox Termination with Screen. For use with 42PV and 53PV indoor tankless models only. This all-in-one vent kit contains required category III vent components necessary for a complete, simple installation. Also includes a pressure relief valve but no thermostate wire.

Part #RTG20003

RTG20003$321.75
Click to enlarge4-inch Horizontal Vent Kit4-inch Horizontal Vent Kit: Includes RTG 20002BM Adapeter, (2) two RTG200002E 90 degree elbows, RTG 20002C 12" extention, RTG 20002L 6" - 19" adjustible extention, RTG 20002N Horizontal Wall Thimble, and RTG 20002F 90 Degree Elbox Termination with Screen. For use with 74PV and 199PV indoor tankless models only. This all-in-one vent kit contains required category III vent components necessary for a complete side wall vent termination. Includes remote control thermostat wire & pressure relief valve.. Part #RTG20007

RTG20007$400.40
Click to enlargeDigital Remote Control ThermostatDigital Remote Control Thermostat for the RTG-74 Residential Tank less Water heaters. All RTG-74 models include on USC-117 remote control Thermostat as standard equipment that has a maximum temperature setting of 120 degrees. An 18 AWG 2 conductor thermostat wire is required for any remote control connection which is not included. The Maximum distance between the water heating unit and the remote control is 195 feet. A total of (3) three additional shower remotes may be used. Shower remote controls - when in use - are protected from override by other controls to prevent scalding. For use with most Rheem tank less gas water heaters. Main Remote - Part #RTG20006DW Bath 1 Remote - Part #RTG20006DU Bath 2 Remote - Part #RTG20006DV

RTG20006DW$142.98
Choose Additiaonal Remotes: 
Click to enlargeManifold Controller with CabinetThe MIC-180 Manifold control is designed to electronically control the flow rate and outlet temperature of up to 6 units. With the Addition of the MICS-180 extended communication PCB, up to 20 units can be installed together to meet the hot water demands of large heavy-duty projects

MIC-180$644.95
Click to enlargeSupplemental Manifold Control Board Supplemental Manifold Control Board for 7 - 20 units.

MICS-180$429.00
Click to enlargeEZ-Link 2 unit manifold control cable.EZ Link Cable For use with most models. Contact us for details. This EZ Link cable connects two tankless gas water heaters to operate together as one unit for high demand applications. Part #RTG20040

RTG20040$50.00


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