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Model # TK30RB21-24G3X

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Tankless Water Heater Kit with 3/4 in. IPS Service Valves, 24 in. Gas Connector (290,900 BTU), Gas Ball and PR Valve

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  • Tankless Water Heater Installation Kit
  • Use in potable water distribution systems for water flow control
  • Compact design for a perfect fit on a variety of installations
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Product Details

BrassCraft's Coated Corrugated Steel Tankless Installation Kit contains everything you need to connect most tankless water heaters to your gas and water supply. Tankless Service Valve features a captive nut and washer to eliminate the potential for component loss during installation. Additionally, the captive washer won't kink or misalign during installation. The new compact, slim-fit valve design is a perfect fit for a variety of installations - recessed or cover boxes. Integrated drain valve allows instant water flow control and hassle-free maintenance of your tankless appliance. BrassCraft's ProCoat stainless steel gas connector is engineered with added safety in mind. The proprietary polymer coating is designed to withstand prolonged exposure to harsh household chemicals, UV rays and salt. ProCoat is applied to the corrugated stainless steel connector using advanced powder-coat technology. The coating is applied only after the connector has been 100% leak tested, prior to nut and fitting assembly. This process results in the most complete corrosion resistance available.
  • Includes 3/4 in. IPS x 3/4 in. IPS tankless service valve
  • Integrated drain valve (3/4 in. male hose thread) and pressure-relief port (3/4 in. FIP) reduces the number of components and connections required to install the appliance, reduces time and cost of the installation
  • Right-sized, front-aligned handles remain accessible for future maintenance - even in recessed or cover boxes
  • Includes 3/4 in. I.D. (7/8 in. O.D.) x 24 in. corrugated stainless steel gas connector with corrosion resistant coating
  • Steel gas fittings included: 3/4 in. FIP and 3/4 in. MIP (tapped 1/2 in. FIP)
  • Use with natural and LP (propane) gases
  • Includes 3/4 in. FIP x 3/4 in. FIP full-port gas ball valve
  • Includes 200 K BTU/hour pressure relief valve with 3/4 in. MIP connection to service valve and 3/4 in. FIP connection to drain pipe
  • Gas connector 100% leak tested and approved for indoor and outdoor use
  • Gas connector, gas ball valve and PR valve CSA certified
  • Service valve IAPMO and IGC certified
  • No-lead certified
  • Return Policy
  • California residents


Dimensions: H 7.5 in, W 7 in, D 8.125 in


Inner diameter (in.)0.75Outer diameter (in.)0.875
Product Depth (in.)8.125 inProduct Height (in.)7.5 in
Product Length (in.)7.500 inProduct Width (in.)7 in


Connection typeFIP x MIPGas Vent Pipe and Fittings Accessory TypeGas Appliance Connector
Inner materialStainless steelMaximum Pressure (PSI)0.5
Maximum Working Temperature (F)150Minimum working temperature (F)-40
Outer MaterialStainless steelProduct Weight (lb.)5.3630 lb

Warranty / Certifications

Certifications and ListingsCSA Listed, IAPMO Certified, NSF ListedManufacturer WarrantyLimited Manufacturer Warranty

Questions & Answers

Q:Can the valves hook up tp a PEX water line using a sharkbit connector?
by|Sep 13, 2022
1 Answer
Answer This Question

A:  Hello, We appreciate your interest in our products and we would be happy to speak to you more about your issue to determine if we can assist further. Please give our Customer Support Team a call at 877-272-7755 and reference this review.

by|Sep 14, 2022
    Q:Is it available in the stores?
    by|Mar 7, 2017
    0 Answer
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    Q:How and why is this kit necessary for a tankless water heater to work properly?
    by|Apr 10, 2016
    0 Answer
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