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Description
1/2 in. Lead-Free Reduced Pressure Principle AssemblyThe 1 2" 975XL2 Backflow Preventer is perfect for safeguarding potable water from contamination due to backsiphonage and backpressure in high health hazard applications. Its bronze body wye pattern design allows for separate access to each check valve and the relief valve, reducing repair expenses and time. With a short lay length, installation and replacement costs are also minimized. This backflow preventer is compliant with low lead laws and meets
The 1/2" 975XL2 Backflow Preventer is perfect for safeguarding potable water from contamination due to backsiphonage and backpressure in high health hazard applications. Its bronze body wye pattern design allows for separate access to each check valve and the relief valve, reducing repair expenses and time. With a short lay length, installation and replacement costs are also minimized. This backflow preventer is compliant with low-lead laws and meets ASSE Listed 1013, IAPMO Listed, CSA Certified, and AWWA Compliant C511 standards, making it the best and most reliable choice for irrigation systems. Additionally, easy top access checks and replaceable seats ensure simple repairs even in compact locations. All components are made of cast bronze and stainless steel, ensuring corrosion-resistance.Features
| Item Weight | 7 |
| Installation | Above Ground |
| Maximum Pressure (psi) | 175 |
| Connection | FIP |
| Thread Type | FIP |
| Returnable | 180-Day |
| Compatible Pipe Material | Multi-Purpose |
| Number of Outlets | 1 |
| Maximum Working Temperature (F) | 180 |
| Material | Brass |
| Valve Type | Reduce Pressure Zone |
| Pressure Rating | 175 |
| Irrigation System Component | Valve |
| Pack Size | 1 |
| Operation | Automatic |
| Product Weight (lb.) | 5 lb |
| Package Quantity | 1 |
| Inlet Size (in.) | .5 |
| Outlet Size (in.) | 2 or less |
| Product Length (in.) | 6 |
| Product Height (in.) | 4.25 |
| Product Width (in.) | 10 |
| Manufacturer Warranty | All goods sold hereunder are warranted to be free from defects in material and factory workmanship for a period on one year from date of purchase. |
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4.1 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Imprescindible
Format: Hardcover
Libro esencial para entender aspectos técnicos y completar la formación de los estudios universitarios .
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Reviewed in the United States on October 15, 2025
★★★★★ 5
good quality
Format: Hardcover, Format: Hardcover
Content is top notch as always. My 5-stars go mainly to reflect print quality of the book. Text is nice and clear, binding is done in proper cloth spine binding as you would expect from hardcover edition. Ordered my book on Feb 5th, 2019 and received it on Feb 11th, 2019. The book feels solid not like to fall apart right away. No issues like those reported for "Real-Time Rendering, 4th Edition" or "Physically Based Rendering: From Theory to Implementation 3rd Edition" or "3D Math Primer for Graphics and Game Development, 2nd Edition". This one is a keeper, so sad some other CG books had to go beacuse of the quality "issues".
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Reviewed in the United States on February 13, 2019
★★★★★ 4
An Invaluable Book
Format: Hardcover, Format: Hardcover
Game Engine Architecture" by Jason Gregory has proven to be a treasure trove of knowledge, especially in the realms of lower-level computer programming and the inner workings of CPUs. The first third of the book, which I have thoroughly enjoyed, dives deep into the intricacies of memory management and concurrent programming. Gregory’s explanations are so lucid and engaging that the complex concepts of memory orders such as relaxed, release, and acquire have become clear to me, showcasing their critical roles in programming.
What is particularly remarkable is how the book's first 400 pages serve not just as a guide to game engine architecture, but also stand on their own as an excellent introduction to computer science. It's a testament to the author's skill in distilling complex material into digestible content that even those without a vested interest in game development would find immense value in.
However, a caveat I must mention is the book's physical heft. Its size and bulk make it somewhat unwieldy, and I learned this the hard way when it fell from my desk. The impact caused the page binding to tear away from the hard cover, which was disappointing considering the book's cost. Nevertheless, with some craftiness involving thick drawing paper and glue, I managed to repair it. If the author adds any more information to the next edition, it'd probably be best to turn this into a 2-3 volume set to manage the size.
Despite this setback, the book remains an invaluable resource. Its depth and clarity are unmatched, making it a worthy addition to any tech enthusiast's library. Just be sure to handle it with care.
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Reviewed in the United States on November 11, 2023
★★★★★ 5
Much thicker than I expected!
Format: Hardcover
This book is massive and could easily be split into two or three volumes, which is great because it covers a very deep topic. It will be a while before I read the book from cover to cover, but the few chapters I've skipped to were able to help me immediately on some problem areas in a game engine that I built last year. I would definitely recommend this to anyone interested in video game development.
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Reviewed in the United States on June 14, 2021
★★★★★ 5
Kickstarts your knowledge of game dev
Format: Hardcover
This book hits on all cylinders, condensing decades of actionable knowledge about game development into a single source. There's a lot more to game dev than what's in this book, but this gives fantastic usable detail on many subjects and gets you oriented with and pointed in the right directions for the few it doesn't.
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Reviewed in the United States on July 1, 2021
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