Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
1/2 in. FNPT Inlet and Outlet Lead-Free Dual Check ValveThe Zurn Wilkins Model 700XL dual check is an economical way of providing backflow protection against backpressure and back siphonage in low hazard applications. The 700XL's tubular design houses two in line checks and is available in several end connection configurations. Ideal for use where lead free valves are required. California residents see Prop 65 WARNINGS Dual check valve backflow preventer consisting of two independently operated in line
The Zurn Wilkins Model 700XL dual check is an economical way of providing backflow protection against backpressure and back-siphonage in low hazard applications. The 700XL's tubular design houses two in-line checks and is available in several end connection configurations. Ideal for use where lead-free valves are required.- California residents
- Dual check valve backflow preventer consisting of two independently operated in-line spring-loaded check valves
- Low lead bronze body construction
- Corrosion-resistant internal parts
- 1/2 in. union FNPT inlet connection x 1/2 in. FNPT outlet connection
- Valve may be installed vertically
- Valve may be installed horizontally
- CSA certified
- NSF listed - standard 61
- annex G
- ASSE listed 1024
Features
| Item Weight | 1 |
| Installation | Above Ground |
| Maximum Pressure (psi) | 170 |
| Valve Type | Double Check |
| Maximum Working Temperature (F) | 140 |
| Returnable | 180-Day |
| Compatible Pipe Material | Multi-Purpose |
| Number of Outlets | 0 |
| Material | Brass |
| Pressure Rating | 175 |
| Irrigation System Component | Valve |
| Pack Size | 1 |
| Connection | FIP x FIP |
| Thread Type | FNPT |
| Operation | Automatic |
| Product Weight (lb.) | 1 lb |
| Package Quantity | 1 |
| Inlet Size (in.) | .5 |
| Product Width (in.) | 3.18 |
| Product Height (in.) | 1.75 |
| Outlet Size (in.) | 2 or less |
| Product Length (in.) | 1.75 |
| 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. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 2319 reviews
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Product Reviews
★★★★★ 5
Comfortable
Material Type: Black - 2 Pairs, Size: X-Large, Material Type: Black - 2 Pairs, Size: X-Large
I have very sensitive skin, so I usually need to wear socks at all times. These are especially comfortable because they don’t cover the toes, which helps with temperature control. The material is well-balanced—not too thick or too thin—and has just the right amount of stretch. I also appreciate the large traction area, which adds stability. Another plus is that they are completely fragrance-free.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
★★★★★ 5
Great Heel Socks
Material Type: Black - 3 Pairs, Size: Large
I don't know how they work but it's wonderful. I've had rough heel problems for a long time. I wear these everyday and my heels are not rough. They're not baby bottom smooth, but they are not ever going to be. These heel socks also oncce they are properly positioned snap onto the heel. Properly positioning them is easy when you put them on your foot with the heel cup in the correct orientation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 3
Too small
Material Type: Gray - 3 Pairs, Size: X-Large
Too tight! Even size large used for a man with smaller feet is too tight. Also, no instructions for use or care.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Good fit
Material Type: Black - 3 Pairs, Size: X-Large
My husband just started using these and they feel comfortable. Hasn't used them long enough to see if his heels are better. He has a high arch so I bought him the XL and they fit perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
No more painful cracked heels! These really do work!
Material Type: Black - 3 Pairs, Size: X-Large
These really do work well. This is one of the first winters that I have not experienced painful, cracked heels. They are long lasting, and definitely make my heels smoother and softer after wearing them. For the first few times wearing them I simply went with the moisturizer embedded in them. After a few uses I then covered my heels with Aquaphor Advanced Therapy Healing Ointment. This worked even better, and I would recommend it. I am very glad I bought these. Of note, I have really big feet that are quite wide and the XL are a little snug but not uncomfortably so. I use them overnight, but also have worn them under socks and they work fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
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