Top 8 Pressure Relief Valve 3/4 – Pipe Fittings

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1. Midline Valve


Midline Valve GUHW-QSW256 Pressure Relief Valve for Tankless Water Heater, 3/4 in. FIP x MIP, Forged Brass

Midline Valve #ad - 1 tankless heater solution: Ideal for Releasing Pressure in your Tankless or Closed-Loop Hot Water Systems. Fully automatic Valve Reseats Itself after Relieving Pressure. Superior quality: heavy duty Forged Brass Construction; Lead Free; Dezincification Resistant; Corrosion Resistant. Easy installation and Compact Design. Fip x mip Connections. Universal fit: secure, leak-Free 3/4 in.
BrandMidline Valve #ad
ManufacturerMidline Valve #ad
Height1 Inches
Length2 Inches
Width1 Inches
Part NumberGUHW-QSW256

2. Camco


Camco 10471/10473 3/4" Temperature and Pressure Relief Valve with 4" Probe

Camco #ad - 3/4" npt connection. Listed to ansi Z21. 22. Factory set at 150 PSI and 210F. 4" probe. Brass body with stainless spring.
BrandCamco #ad
ManufacturerCamco #ad
Height11.38 Inches
Length1.5 Inches
Weight0.54 Pounds
Width3.63 Inches
Part Number10473
Warranty1 year against manufacturing defects



HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 150 PSI ASME Hot Water

HYDRO MASTER #ad - 3/4" male npt threaded inlet for connecting to a female NPT threaded connection. Universal 3/4" size is suitable for most U. S. Residential usage. Easy and fast installation. All brass body and stainless steel spring for corrosion resistance. Designed for protection against excessive pressure only.
ManufacturerHYDRO MASTER #ad
Weight0.45 Pounds
Part Number0571102

4. Watts Brass & Tubular


Watts Brass & Tubular 374A 3/4 Boiler Relief Valve

Watts Brass & Tubular #ad - This product adds a great value. Protects hot water space heating boilers Compact construction, produces exceptionally high capacity Protects boiler installations up to 550, 000 Btu/hr at 30 lb. This product is manufactured in United States.
BrandWatts Brass & Tubular #ad
ManufacturerStandard Plumbing Supply #ad
Height2 Inches
Length4.1 Inches
Weight0.01 Pounds
Width2.6 Inches
Part Number374A



LASCO 05-1705 3/4-Inch Pipe Thread 150-Pound Pressure Water Heater Temperature and Pressure Relief Valve

LASCO #ad - 3/4-inch pipe thread. Temperature and pressure relief valve. Size: Safety feature. 210 degrees, 150 PSI. For water heater.
BrandLASCO #ad
ManufacturerLASCO #ad
Height1.5 Inches
Length6.5 Inches
Width1.63 Inches
Part Number05-1705

6. Watts


Watts LF100XL Lead Free Temperature and Pressure Relief Valve for Water Heaters and Hot Water Storage Tanks, 3/4 inch, Copper Alloy

Watts #ad - A 2-in-1 temperature and pressure relief valve with copper alloy body, a NPT female outlet connections, a NPT male inlet, and a test lever and extension thermostat for installation in the hot water outlet line or directly in the tank tapping.

The wetted surface of this product contacted by consumable water contains less than 025% of lead by weight. Temperature relief: 210 degrees f 99 degrees c, pressure relief range: 75 to 150psi 5. 2 to 103 bar, asme rated, and CSA listed. Proven accurate thermostat with special thermo-bonded coating which must be immersed in the water within the top 6 inches 152 mm of the tank. Provides fully automatic self-closing temperature and pressure relief protection for hot water storage tanks and water heaters up to 105, 000 BTU/HR.
BrandWatts #ad
ManufacturerWatts #ad
Height10.5 Inches
Length4 Inches
Width0.75 Inches
Part Number958208
Warranty1-Year Manufacturer Limited

7. Watts Sea


Watts Sea 66100 100XL-4 3/4" 150 Psi 100Xl-4 T & P Relief Valve

Watts Sea #ad - Series 100xl temperature and pressure relief valves are used in water heater and hot water storage Tank Applications To Provide Automatic Temperature And Pressure Protection To Hot Water Supply Tanks And Hot Water Heaters Up To 105, 000 Btu British Thermal Unit/Hr Hour.
BrandWatts Sea #ad
ManufacturerWatts Sea #ad
Height1 Inches
Length1 Inches
Weight0.3 Pounds
Width1 Inches
Part Number66100100XL4
Model66100 100XL-4

8. Kahenian


Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve with Pressure Relief Valve, Takagi, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, EcoSmart 3/4" IPS

Kahenian #ad - 30-day money back- if you are not 100% satisfied with the product just return the product. Also, comes with free PTFE Thread Seal tape for your convenience.

Meet insdustry standards- material is made of clean brass for low lead codes. Quick connection- pressure relief Valve comes included for connection to hot valve. Your satisfaction is always our priority. Easy installation- hot and cold installation service valves come included with 1 Hot Valve, 1 Cold Valve, 1 Pressure Relief Valve. Compatibility- connects to most major tankless water heater brands such as Rheem, Takagi, Rinnai, Navien, Bosch, Ecosmart, and Nortiz. No questions asked.
BrandKahenian #ad
ManufacturerKahenian #ad