12 Long Term 3 4 Inch Ips Isolator Tankless Water Heater Service Valve Kit Review of 2026 For Leak-Free Flushing

1

Long Term 3/4 Inch IPS Isolator Tankless Water Heater Service

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  9.7
• Brand
  long term

Key specs2

Included Accessories

• Hot water isolation valve
• Cold water isolation valve
• Pressure relief valve
• PTFE thread tape roll

Pressure Rating

500 WOG

Pros & cons42

Pros

• Includes dedicated hot and cold isolation valves, a pressure relief valve, and PTFE thread seal tape
• Solid one-piece forged lead-free brass construction designed to resist corrosion and leakage
• Standard 500 WOG rating with colored handles for quick identification of hot and cold lines
• Broad compatibility with 3/4-inch IPS connections across Rheem, Rinnai, Navien, and Bosch units

Cons

• 500 WOG pressure rating is lower than the 600 WOG rating found on select heavy-duty kits
• Does not explicitly list third-party CSA certification markings on the valve body

2

Hourleey 3/4 Inch IPS Isolator Tankless Water Heater Service Valve

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  8.9
• Brand
  Hourleey

Key specs2

Flow Design

Full-port ball valve

Plumbing Certifications

Components feature certified lead-free brass meeting federal standards, with CSA certification markings noted on piping connections.

Pros & cons42

Pros

• Full-port ball valve design maintains optimal water flow rate without restricting line pressure
• Certified lead-free brass construction verified with CSA certification markings
• Color-coded quarter-turn handles provide swift hot and cold line identification
• Compatible with major 3/4-inch gas tankless brands like Noritz, Rinnai, and Rheem

Cons

• PTFE thread sealant tape is not included in the package
• Relief valve pressure rating details are omitted from the product specifications

3

LIULO TOOL 3/4 Inch IPS Isolator Tankless Water Heater Service

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  8.9
• Brand
  LIULO TOOL

Key specs2

Drain Port Protection

Brass safety caps included

Lead-Free Compliance

Components meet federal and state potable water standards for lead content and feature CSA certification markings.

Pros & cons42

Pros

• Integrated drain valves include threaded brass safety caps for clean maintenance hookups
• Full-port ball valves preserve water flow volume to household fixtures
• Lead-free brass construction meets federal potable water standards with CSA markings
• Universal 3/4-inch IPS threads connect cleanly to standard residential heater ports

Cons

• Thread seal tape is not supplied in the packaging
• Pressure relief valve PSI rating is not specified on the listing

4

Xiny Tool 3/4-Inch IPS Isolator Tankless Water Heater Service Valve

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  8.8
• Brand
  Xiny Tool

Key specs2

Valve Operation

500 WOG full-port ball valve

Drain Access

Integrated drain valves feature threaded brass caps to enable direct hose attachments for descaling solutions.

Pros & cons42

Pros

• Heavy brass safety caps protect the integrated drain ports against dirt and accidental drips
• Full-port ball valve interior minimizes flow restriction through the hot and cold lines
• Certified lead-free brass meets drinking water standards and includes CSA certification
• Color-coded handles speed up line identification during seasonal maintenance

Cons

• Package does not supply Teflon thread sealing tape
• Specific BTU discharge rating for the relief valve is omitted in the listing

5

FOGATTI 3/4 Inch IPS Isolator Tankless Water Heater Industry Leading

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  8.5
• Brand
  FOGATTI

Key specs2

Relief Valve Specifications

• 150 PSI pressure limit
• 200,000 BTU rating
• CSA certified

Forging Method

One-piece forged brass

Pros & cons42

Pros

• Includes a CSA-certified pressure relief valve rated for 150 PSI and 200,000 BTU
• One-piece forged brass body reduces mechanical joints to help prevent leakage
• Stated design lifespan of 6 years under periodic flushing maintenance
• Meets federal and state lead standards for safe residential drinking water lines

Cons

• PTFE sealing tape is not included and must be sourced separately
• Carries a 500 WOG rating rather than the 600 WOG rating seen on competing heavy-duty valves

6

3/4 Inch IPS Isolator Tankless Water Heater Service Isolation Valve

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  8.2
• Brand
  Iococee

Key specs2

Pressure Tolerance

600 WOG rating

Safety Certification

The included 150 PSI and 200,000 BTU pressure relief valve carries authentic CSA certification markings.

Pros & cons42

Pros

• High 600 WOG pressure rating provides enhanced structural strength against line pressure spikes
• Supplied pressure relief valve is CSA certified and rated for 150 PSI and 200,000 BTU
• Gravity-forged one-piece brass body design minimizes leak points around the main housing
• Full-port ball valve construction ensures unimpeded water delivery during daily household use

Cons

• Does not include thread sealing tape in the box
• Total product weight and wall thickness dimensions are not listed

7

ThermoMate 3/4 Inch IPS Isolator Tankless Water Heater Service Valve

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  8.2
• Brand
  thermomate

Key specs2

Brand Matching

Optimized for Thermomate gas and electric units while maintaining universal 3/4-inch IPS thread fitment.

Shut-Off Mechanism

Quarter-turn ball valve

Pros & cons42

Pros

• Direct fit compatibility engineered for Thermomate gas and electric tankless water heaters
• CSA-certified lead-free heavy-duty brass construction complies with drinking water safety codes
• Integrated drain valves equipped with threaded brass caps for secure flushing connections
• Quarter-turn color-coded handles deliver simple shut-off control during isolation

Cons

• Pressure relief valve PSI and BTU ratings are not detailed on the listing
• Thread sealing tape is not included with the set

8

Solimeta 3/4 Inch IPS Isolator Tankless Water Heater Service Valve

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  8.2
• Brand
  Solimeta

Key specs2

Connection Standard

3/4-inch MNPT threaded

Overpressure Protection

Includes a CSA-certified 150 PSI relief valve designed to vent excess pressure on the hot water line.

Pros & cons42

Pros

• Standard 3/4-inch MNPT thread compatibility enables solder-free installation
• Includes a CSA-certified 150 PSI pressure relief valve for code-compliant overpressure protection
• Certified lead-free brass build offers strong resistance to corrosion from potable water
• Integrated capped drain ports allow fast descaling flushes without shutting down main water

Cons

• WOG pressure rating is not stated in the manufacturer specifications
• Does not provide PTFE tape in the package

9

KAINGA Tankless Water Heater Service Valve Kit, 3/4 Inch IPS

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  7.7
• Brand
  KAINGA

Key specs2

Union Seal Material

EPDM rubber gaskets

Forged Build Weight

4.06 lbs

Pros & cons42

Pros

• EPDM union gaskets provide durable, leak-tight sealing at the heater connection points
• Substantial 4.06-pound forged brass construction provides solid mechanical strength
• Includes a 150 PSI pressure relief valve configured for hot water line mounting
• Precision-machined IPS threads allow solder-free installation on major brands

Cons

• Specific WOG pressure rating is not published in the product details
• Teflon thread tape is omitted from the hardware kit

10

CAMPLUX 3/4 Inch IPS Isolator Tankless Water Heater Service Valve

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  7.6
• Brand
  CAMPLUX ENJOY OUTDOOR LIFE

Key specs2

System Rating

• 600 WOG valve body
• 150 PSI relief pressure
• 200,000 BTU capacity

Camplux Model Matching

Confirmed fit for Camplux series including CX264, CX360, CX422, CA528, CA686, and TEW electric heaters.

Pros & cons42

Pros

• Rugged 600 WOG rating delivers superior resistance against high water system pressures
• Included pressure relief valve is CSA certified and rated for 150 PSI and 200,000 BTU
• Documented direct compatibility with a wide range of Camplux gas and electric tankless units
• One-piece forged brass body with quarter-turn color-coded handles and brass caps

Cons

• Thread sealing tape is not included in the box
• Compact 4.72-inch footprint can make wrench clearance tight in confined wall recesses

11

Solimeta 3/4 × 1 Inch IPS Isolator Tankless Water Heater

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  7.6
• Brand
  Solimeta

Key specs2

Port Sizing

3/4-inch by 1-inch IPS

Installation Scope

Engineered for plumbing setups that transition between 3/4-inch heater outlets and 1-inch supply piping.

Pros & cons42

Pros

• Features a 3/4-inch by 1-inch configuration to accommodate plumbing line transitions
• Includes a CSA-certified 150 PSI pressure relief valve to satisfy residential safety codes
• Full-port ball valve interior prevents unwanted water flow restriction
• Lead-free brass construction resists internal scale buildup and corrosion

Cons

• Dual-size 3/4-inch to 1-inch format requires careful pipe size verification prior to purchase
• Specific WOG rating is not disclosed on the product specification sheet

12

Upgrade 3/4 Inch IPS Isolator Tankless Water Heater Service Valve

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  7.1
• Brand
  MGGPAXXT

Key specs2

Valve Body Rating

600 WOG forged brass

Flow Capacity

Full-port ball valves match interior pipe diameter to prevent drops in water pressure across household fixtures.

Pros & cons42

Pros

• High-spec 600 WOG rating ensures excellent pressure tolerance across hot and cold lines
• Pressure relief valve is CSA certified and rated for 150 PSI and 200,000 BTU discharge
• Heavy 3.5-pound forged lead-free brass construction prevents leaks and corrosion
• Full-port ball design maintains full household water volume without restriction

Cons

• Package does not supply Teflon thread sealing tape
• Extended 12-inch package dimensions may require extra clearance in compact pipe chases

Last update on 2026-10-08 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Does a 3/4-inch IPS service valve kit fit standard gas and electric tankless water heaters?

Yes, 3/4-inch IPS isolation kits fit standard 3/4-inch MNPT connections found on most residential and commercial gas and electric tankless water heaters. These valve sets mount directly onto the cold water inlet and hot water outlet ports across units from brands such as Rheem, Rinnai, EcoSmart, Navien, and Camplux. If you are setting up an exterior system like a tankless water heater for outdoor shower use, confirm that the appliance ports match standard 3/4-inch thread sizing rather than 1/2-inch fittings before installation.

What pressure ratings do these tankless isolation valves provide?

Valves in this category typically carry either a 500 WOG or 600 WOG rating, which indicates water, oil, and gas pressure capacity. Heavy-duty brass bodies house full-port ball valves that preserve water flow rates without creating internal bottlenecks during normal household use. These pressure ratings ensure the valves remain stable against line pressure changes between maintenance intervals.

Is the included pressure relief valve certified for home plumbing systems?

Models from brands like Solimeta and ThermoMate include pressure relief valves that are CSA certified for residential use. These relief units are rated for 150 PSI and up to 200K BTU relief capacity to protect lines from thermal expansion or overpressure hazards. Check the relief valve body markings before installation to confirm local plumbing code acceptance for your specific structure.

How do service valves prevent leaks during routine descaling?

Clean forged brass construction paired with precision full-port ball valves allows you to shut off home plumbing supply lines completely while descaling. Kits like KAINGA use EPDM union gaskets to maintain watertight seals at the heater connections, while threaded brass drain caps protect the flush ports between uses. Color-coded red and blue handles offer immediate visual confirmation that the main lines are isolated before pumping cleaning solutions through the heat exchanger.

What components are included in a standard 3/4-inch IPS valve package?

A standard package includes one hot water isolation valve with a red handle, one cold water isolation valve with a blue handle, and a 150 PSI pressure relief valve. Some packages, such as the Long Term kit, also supply PTFE thread tape to help secure the threaded joints. Both main valves feature integrated side drain outlets designed to receive garden hose connections during periodic maintenance.

Can these service valves connect to 1-inch home supply pipes?

Standard 3/4-inch kits thread strictly onto 3/4-inch pipe connections, but specialized options like Solimeta provide a 3/4-inch by 1-inch IPS configuration. If your home supply lines use 1-inch pipe while your water heater features 3/4-inch MNPT stubs, choose a dedicated 3/4-inch by 1-inch kit. Verifying line measurements beforehand avoids the need for loose adapters that could introduce leak points.