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MEO Watts Regulator LF53L 150 0121443 Lead Free 1/2" 150 Psi Pressure Relief Valve Replaces 53L 150 P15923350MEO-293651 https://cdnimages.opentip.com/full/MEO/MEO-293651.jpg Watts Regulator LF53L 150 0121443 Lead Free 1/2" 150 Psi Pressure Relief Valve Replaces 53L 150 Manufacturer Part Number: LF53L-150WATLF53L-150 0121443 Lead Free 1/2 150 PSI Pressure Relief Valve Replaces 53L-150Part Description:Pressure Relief Valve Type Poppet, Lever Inlet Size 1/2 Inch Outlet Size 1/2 Inch End Connection Male Threaded x Female Threaded Body Material Bronze Spring Material Stainless Steel Disc Material Silicone Set Pressure Range 150 PSI Temperature Rating 210 Deg F Pressure Rating 75 to 150 PSI Inclusions/Features Furnished with Test Lever, Relieve Excessive Pressure on Storage Tank Application Domestic Storage Tank, Tankless Water Heater and Solar Heating Applicable Standard ASME HV, CSA, ANSI Z21-22/CSA 4.4 Lead-Free Capacity 15000 BTU/Hour Overall Dimension 1-7/8 Inch Width x 3-1/2 Inch HeightFeatures / BenefitsFurnished with Test Lever Relieve Excessive Pressure on Storage Tank Relieves Excessive Pressure on Tankless Water Heater Lead-Free 15923350 098268585193 1.2000lbs 0.00 0.00 0.00
Watts Regulator
141.1500 2027-06-13 7 In Stock
customer review - by , November 11, 2025
5/ 5stars
This worked to reduce the incoming water pressure from 100psi to 70psi. Easy to install, easy to adjust to desired pressure and appears to be a well made durable product. Great value for the money. Not much more to say
customer review - by , June 6, 2025
4/ 5stars
The box was opened (not sealed). And there was no valve in
customer review - by , June 6, 2025
5/ 5stars
This is my 2nd purchase from watts, its a good quality and easy to install. Lead free product is my best choice.
customer review - by , June 6, 2025
5/ 5stars
I bought this to replace a 20-year-old N35B in my new home that not only wasn't regulating pressure anymore, it was leaking and making a mess. I have included a photo of the old setup. I was able to simply loosen the nuts, slide the old regulator out, clean the existing threads and mating surfaces, slightly dope up the threads on the new regulator, and carefully slide it in without pinching the O-rings. I didn't need to sweat anything, but the parts were provided to do that if necessary. Once I tightened it up, it worked like a charm and I had 50 psi. Unlike the old N35B, this one is adjustable, so I turned the screw about six revolutions and got 60 psi. This was so much less expensive and less time-consuming than calling a plumber, even including the cost of the big wrench I had to buy.
customer review - by , April 4, 2025
5/ 5stars
Perfect match
customer review - by , April 4, 2025
4/ 5stars
Work great. Easy install and fit well no leaks. No tape/ dope need. Come with O ring.
customer review - by , March 3, 2025
5/ 5stars
We had high water pressure at our house, and after measuring it, it was found to be a potential cause of several water leaks. After adding this regulator to the system, it was steady at 70 psig, which is typically plenty high for a household. Robust PRV.
customer review - by , January 1, 2025
1/ 5stars
Works great.
customer review - by , January 1, 2025
5/ 5stars
Just what I needed, fit perfectly in the place of the old one. Hope this one last twenty years like the first one.
customer review - by , January 1, 2025
5/ 5stars
PIECE OF CRAP! NO CUSTOMER SUPPORT, HUMS ALL THE TIME WHEN YOU RUN A FAUCET OR SHOWER ETC.

Watts Regulator LF53L-150 0121443 Lead Free 1/2" 150 Psi Pressure Relief Valve Replaces 53L-150, Price/each

stars Rating 4.5 | 26 reviews
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UPC: 098268585193
SKU: MEO-293651
Price: $141.15
Quantity:
7 In Stock
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Product Description

Price is for each.

Manufacturer Part Number: LF53L-150

WATLF53L-150 0121443 Lead Free 1/2 150 PSI Pressure Relief Valve Replaces 53L-150

Part Description:
  • Pressure Relief Valve
  • Type Poppet, Lever
  • Inlet Size 1/2 Inch
  • Outlet Size 1/2 Inch
  • End Connection Male Threaded x Female Threaded
  • Body Material Bronze
  • Spring Material Stainless Steel
  • Disc Material Silicone
  • Set Pressure Range 150 PSI
  • Temperature Rating 210 Deg F
  • Pressure Rating 75 to 150 PSI
  • Inclusions/Features Furnished with Test Lever, Relieve Excessive Pressure on Storage Tank
  • Application Domestic Storage Tank, Tankless Water Heater and Solar Heating
  • Applicable Standard ASME HV, CSA, ANSI Z21-22/CSA 4.4
  • Lead-Free
  • Capacity 15000 BTU/Hour
  • Overall Dimension 1-7/8 Inch Width x 3-1/2 Inch Height


Features / Benefits

  • Furnished with Test Lever
  • Relieve Excessive Pressure on Storage Tank
  • Relieves Excessive Pressure on Tankless Water Heater
  • Lead-Free

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Note

This product is not eligible for coupon code discount, for we've been offering the best price in the market.
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Customer Reviews
By A Customer
Date: November 21, 2025
This worked to reduce the incoming water pressure from 100psi to 70psi. Easy to install, easy to adjust to desired pressure and appears to be a well made durable product. Great value for the money. Not much more to say
Rating: 5 stars [5 of 5 Stars!]
By Missing the valve
Date: June 26, 2025
The box was opened (not sealed). And there was no valve in
Rating: 4 stars [4 of 5 Stars!]
By Arnil T.
Date: June 07, 2025
This is my 2nd purchase from watts, its a good quality and easy to install. Lead free product is my best choice.
Rating: 5 stars [5 of 5 Stars!]
By Sue B.
Date: June 01, 2025
I bought this to replace a 20-year-old N35B in my new home that not only wasn't regulating pressure anymore, it was leaking and making a mess. I have included a photo of the old setup. I was able to simply loosen the nuts, slide the old regulator out, clean the existing threads and mating surfaces, slightly dope up the threads on the new regulator, and carefully slide it in without pinching the O-rings. I didn't need to sweat anything, but the parts were provided to do that if necessary. Once I tightened it up, it worked like a charm and I had 50 psi. Unlike the old N35B, this one is adjustable, so I turned the screw about six revolutions and got 60 psi. This was so much less expensive and less time-consuming than calling a plumber, even including the cost of the big wrench I had to buy.
Rating: 5 stars [5 of 5 Stars!]
By Jake
Date: April 13, 2025
Perfect match
Rating: 5 stars [5 of 5 Stars!]
By D.L.
Date: April 05, 2025
Work great. Easy install and fit well no leaks. No tape/ dope need. Come with O ring.
Rating: 4 stars [4 of 5 Stars!]
Items 1 - 6 of 25 reviews
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