There are several advantages of having a isolation valve for water heater. We are here to help you pick the best one for your needs from all the best available products in market today.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Rheem Isolation Valve For Water Heater READ REVIEW

Best For Hot Water Heater: Buy: Libra Supply Isolation Valve For Water Heater READ REVIEW

Best With Great Seller: Buy: Itanso Isolation Valve For Water Heater READ REVIEW

Best For Good Quality: Buy: Hqmpc Isolation Valve For Water Heater READ REVIEW

Best For Part Number: Buy: Noritz Isolation Valve For Water Heater READ REVIEW

Best For Bucket: Buy: Metpure Isolation Valve For Water Heater READ REVIEW

Best For Easy Identification: Buy: Matsui Isolation Valve For Water Heater READ REVIEW

Best Integrated Design: Buy: Iococee Isolation Valve For Water Heater READ REVIEW

Best For Customer Service: Buy: Vav Isolation Valve For Water Heater READ REVIEW

Best Value For Money: Buy: Hydro Master Isolation Valve For Water Heater READ REVIEW

Best Overall: Rheem Isolation Valve For Water Heater

Buy on Amazon

The Rheem Isolation Valve For Water Heaters is the best long-standing valve on the market today. The rheem isolation valve for water heater has lead free brass and it allows for great functionality. Make sure this fits by entering your model number. These hot and cold water service valves simplify installation and service by combining multiple valves and connections in a single part.

Above all, the rheem isolation valve for water heater looks pretty good, is yellow and it is working great.

Most customers agree that the valve spontaneously opens up about 3-4 times per day, only for a few seconds at a time. Also, a few also found that the valve has two colors of handles, as shown. And, they say that the valve is easy to install, not much else to report.

• It is small, white and is very compact.
• This is not mentioned anywhere in the description.
• This fits all models of rheem gas tankless water heaters.
• It is time to flush the water heater. It will be a snap.

Best For Hot Water Heater: Libra Supply Isolation Valve For Water Heater

Buy on Amazon

The Libra Supply Isolation Valve For Water Heater's material feels more premium than its price would suggest. The libra supply isolation valve for water heater is built with excellent quality, is great for a great price, It is very professional and has a water heater design. Make sure this fits by entering your model number. And, the valve is the expansion point a connector, not the crimp pex b connector.

The valve is made of quality material and works with all tankless water heaters with a 3/4'' MPT outlet. In addition, it is tough, it works well and has a good - quality design. Lastly, the libra supply isolation valve for water heater is important and it does the job.

Most buyers found that the valve is a great replacement for the watts purge and balancing valve. In addition, a few also found that the valve has a lower flow rate. To sum up, buyers found this to be one of the best valves for daily purposes.

• This comes with a relief valve and an easy drain for maintenance.
• This comes with a union coupling on the heater side for easy service disconnect.
• 100% leak tested, standard brass version, pressure relief valve included; complies with nsf/ansi 61.
• This is very happy and its price is reasonable.

Best With Great Seller: Itanso Isolation Valve For Water Heater

Buy on Amazon

If you often find yourself scrambling for a convenient and suitable valve, Itanso Isolation Valve For Water Heater should be your first option for buying. The itanso isolation valve for water heater has lead free brass, is made for good value and it has the best price. Colored valve handles for easy identification of hot and cold water valves. The tankless kit works with all 3/4 inch npt threads and is suitable for most US residential usage, both residential and commercial gas tankless water heater brands.

The valve is reassemble and it is made with good products. Most importantly, the itanso isolation valve for water heater provides a one-year guarantee against defects in material and workmanship.

Almost all buyers found that the valve is easy to install and works like a charm. In addition, a few say that the valve can be used on two tankless heater installs. Also, a few strongly agree that the outflow line from the pressure valve needs to be directed to a safe discharge location in case it ever operates due to over pressure, failure or routine testing.

• This is used to connect the water heater.
• This has wide applicability and it is very nice.
• This comes with a roll of PTFE tape to avoid the leak.
• This is quality good, works well and it works as expected.

Best For Good Quality: Hqmpc Isolation Valve For Water Heater

Buy on Amazon

The Hqmpc Isolation Valve For Water Heater is capable of outshining several other valves featured in this list in overall features for the price point. The hqmpc isolation valve for water heater is made of brass, It is great for a great price and has a water heater design. Make sure this fits by entering your model number. Further, it is made for good value and it is very nice. Most importantly, the hqmpc isolation valve for water heater is impressive, good quality, It is great quality and has a good quality design.

Most customers found that the valve is made of very good quality and is quite heavy. Also, a few also found that the valve is great for maintenance activities on tankless water heaters. Also, they also found that this is a great diverter kit for flushing a tankless water heater. In short, at the price, they believe that they got a steal of a deal with it.

• This item comes with a pressure relief valve and is threaded on both sides.
• Delivers what they promise.

Best For Part Number: Noritz Isolation Valve For Water Heater

Buy on Amazon

The Noritz Isolation Valve For Water Heater is satisfactory and appropriate and fits well with your regular use. The noritz isolation valve forwater heater fits all other tankless brands with a 3/4" inlet and outlet. Rated pressure relief valve included. Also, this fits all noritz models except nc132m/nc380 and ncc300.

Finally, the noritz isolation valve for water heaters comes with a solid commitment to sustainability and superb technology solutions in tankless hot water heaters, Noritz makes a significant investment in research and development.

Most customers agree that the valve is used to disconnect including isolation valves. In addition, a few say that the valve matches your tank-less heater needs. Further, they also found that the valve is a great service valvefor Noritz brand tankless water heater. In conclusion, the tone of buyers is very positive and we believe that the valve suits the purpose.

• This is cost effective and it is made for product number.
• 3/4" lead free isolationvalve kit with female threaded connections.
• The relief valve is included and the flushing connections are perfect.
• Fits all other tankless brands with a 3/4" inlet and outlet.

Best For Bucket: Metpure Isolation Valve For Water Heater

Buy on Amazon

Best part: Metpure Isolation Valve For Water Heater costs comparatively low and it is available to ship in 24 hours. The metpure isolation valve for water heater is sturdy and it worked the first time. Make sure this fits by entering your model number. The kit comes in a high quality isolation valve service kit with full flow gas line, water lines, and fittings.

Finally, the metpure isolation valve for waterheater fits perfectly and it is durable.

Most customers found that the valve was an Ao smith water heater. And, a few strongly agree that the valve has a second "off-shoot" as a purge. To sum up, buyers found this to be one of the best valves for daily purposes.

• This is a good thing, means the ball seals are tight.
• This is very durable and it is made for quick delivery.
• This includes all components that are crafted from high quality materials for years of usage.
• This is a great kit for making installation easy.

Best For Easy Identification: Matsui Isolation Valve For Water Heater

Buy on Amazon

The Matsui Isolation Valve For Water Heater's material feels more premium than its price would suggest. The matsui isolation valve for water heater fits with a recess box/pipe cover, color coded valve handles for easy identification of hot and cold valves. Make sure this fits by entering your model number. Further, it is designed to prevent misuse.

Lastly, the matsui isolationvalve forwater heater fits perfectly, is durable, It allows for perfect fit and has a good quality design.

Almost all customers agree that the valve is made in China to Japanese specifications in order to reduce the cost. Further, a few also found that this kit allows for the annual “ flush cleaning ” of limescale in a water tank, heater, or tankless water heater. Overall, many buyers have used the matsui isolation valve for water heater for more than a few months without any complaints, and it shows no sign of giving up.

• 100% leak tested, standard brass version, pressure relief valve included.
• Heavy duty forged brass construction, unique hexagon lever designed to prevent misuse.
• Good brand reputation.

Best Integrated Design: Iococee Isolation Valve For Water Heater

Buy on Amazon

Iococee has been making great valves for years, thanks to a combination of clever design and appropriate materials. The Iococee Isolation Valve For Water Heater is easy to use and has a good quality design. You can also find the csa certification on the pressure relief valve to prove its authenticity. The prv ( pressure relief valve ) needs to be installed to the hot water valve.

Most importantly, the iococee isolation valvefor water heater is our greatest pursuit. Additionally, it comes with a brass safety cap that provides easy maintenance.

To sum up, many buyers have used the valve for more than a few months without any complaints, and it shows no sign of giving up.

• Colored valve handles for easy identification and use of hot and cold valves.
• Install a full port ball valve for better flow rate.
• This has lead free certification and has a water heater design.

Best For Customer Service: Vav Isolation Valve For Water Heater

Buy on Amazon

If you often find yourself scrambling for an appropriate and satisfactory valve, Vav Isolation Valve For Water Heater should be your first option for buying. The vav isolation valve for water heater is made for standard sizes and has a waterheater design. The handle will not hit the wall behind the water heater when the valve is opened and closed. The tankless kit works with all 3/4 inch npt threads and is suitable for most American residential usage, both commercial and residential gas tankless water heater brands such as noritz, rinnai, rheem, takagi and so on.

Finally, the vav isolation valve for water heater is made from heavy duty and lead free solid brass which meets the lead free requirements of federal and state and is manufactured in an iso 9001 accredited facility.

• This is easy to use and has a superior integrated design.
• A pressure relief valve is included for connection to the hot valve.
• One of the newcomers and featured product.

Best Value For Money: Hydro Master Isolation Valve For Water Heater

Buy on Amazon

Compared with other valves in this category, the Hydro Master Isolation Valve For Water Heater has a cost-effective design. And, it is easy to install and easy to change the connections with 2 pcs swt. Tankless water heater service valves 500wog, colored valve handles for easy identification of hot and cold valves. Finally, the hydro master isolation valve for water heater includes a residential pressure relief valve (150 psi/500, 000 btu) and 2 pcs swt connections.

One customer says - "You will need to be able to use a torch to install. ". Almost all customers agree that the valve is used to install a wall propane boiler/hot water heater.

• Include a residential pressure relief valve (150 psi/500,000 btu) and 2 pcs swt connections.
• Good brand reputation.