Wilkins 1-975XLTCU | 1" RPZ Backflow Preventer, FNPT, TCU
Wilkins 1-975XLTCU | 1" RPZ Backflow Preventer, FNPT, TCU is backordered and will ship as soon as it is back in stock.
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Important Note on Delivery Times
All shipping estimates provided are approximate only. While we always strive to meet or exceed your delivery expectations, we cannot guarantee the exact delivery times listed.
For time-sensitive orders, please contact us directly so we can provide a more accurate lead time estimate based on your specific requirements.
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All in stock orders received before 3PM EST will ship the same day. Orders received after 3PM EST will ship the following business day.
Water Filters, Hand Dryers, & Indoor Bottle Fillers are our most popular in stock items.
Outdoor Tubular Drinking Fountains
Evergreen normally ships in 5-15 days. Black, Gray and Blue ship in 2-4 weeks.
Ice Machines
In stock units ship within 48 hours. Other units normally ship in 2-4 weeks.
Other
Orders that ship directly from a manufacturer normally have a firm shipping estimate but those dates are subject to change due to manufacturer production, inventory or shipping. We do our best to estimate ship dates but orders shipping directly from the manufacturer can have unexpected delays. We will confirm tracking information when orders ship directly from a manufacturer but may not have updates or estimates beyond the original estimate. Once your order is placed with the manufacturer, it may not be able to be cancelled even if it hasn't shipped yet.
Please contact support@bottlefillingstations.com to confirm delivery time for a specific product or quantity. Or to inquire about an existing order.
Special Case Shipping Rates
Please note that shipping rates are subject to change at any time. We reserve the right to charge an additional fee in addition to the regularly advertised shipping fee for shipping to remote areas not easily accessible by typical freight carrier means (i.e. islands only accessible by ferry). If your order falls into this category, you will be notified upon receipt of your order, and have the option to complete the purchase with additional fee or to cancel the order. Please note, these instances are very rare, as most locations are reachable by regular freight. If you have any questions, please contact us!
Key Terms & Conditions
Exceptions may apply to islands and other remote territories.
All orders shipped by the carrier of our choice.
NOTICE: Product images may vary from the actual item due to differences in size or configuration options.
The Wilkins 1-975XLTCU is a 1 Inch reduced pressure principle assembly designed to provide high hazard protection against backsiphonage and backpressure of contaminated water into potable water supplies.
Key Specifications:
- Size: 1 Inches
- Maximum Working Water Pressure: 175 PSI
- Maximum Working Water Temperature: 180°F
- Notable Certifications: ASSE 1013, cUPC, UL
- End Connections: FNPT ANSI B1.20.1
Other Related Variants:
- None: No other variants specified
Materials:
- Main valve body: Cast Bronze ASTM B-584
- Access covers: Cast Bronze ASTM B-584
- Fasteners: Stainless Steel 300 Series
- Elastomers: Silicone and Buna Nitrile
- Polymers: Noryl™
- Springs: Stainless Steel 300 Series
Typical Installation:
Local codes shall govern installation requirements. To be installed in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.
Standards Compliance:
ASSE Listed 1013; cUPC Listed; UL Classified (less shut-off valves or with OS&Y valves); C-UL Classified; CSA Certified B64.4; AWWA Compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NYC MEA 425-89-M VOL 3
Features & Benefits:
- High Hazard Protection: Protects against both backsiphonage and backpressure where potential health hazards exist in non-potable applications.
- Test Cocks Up Configuration: The TCU option allows test cocks to face upward, simplifying testing and enabling installation close to walls or equipment.
- Accessible Maintenance Design: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line.
- Durable Bronze Construction: Cast bronze ASTM B-584 body with stainless steel fasteners and springs ensures long-lasting performance and corrosion resistance.
FAQ
Q: What is the TCU option on the Zurn 1-975XLTCU?
A: TCU stands for "test cocks up," meaning the test cocks are oriented upward to allow installation close to walls and simplify testing procedures.
Q: What is the minimum installation height required for the Wilkins 1-975XLTCU?
A: The assembly must be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance.
Q: Can the Zurn 1-975XLTCU be used for potable water applications?
A: The Model 975XL is designed for non-potable applications only, providing protection where a potential health hazard exists.
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us
Always consult with a licensed professional and check local codes before installation. For further details, check the Owners Manual.
Contact us at support@bottlefillingstations.com with any questions.

