Dual Check Valve Backflow Preventer for Handheld Showers
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3-day shipping on orders over $50
Hassle-Free Returns
Full refund within 90 days of purchase
Lifetime Warranty
We’ll repair or replace it — guaranteedPRODUCT DETAILS
Many plumbing codes require backflow protection on a handheld shower, because a shower head on a hose can end up sitting in standing water. The HammerHead® Dual Check Valve is a handheld shower backflow preventer with two independent check valves in one solid stainless steel body, so water flows out to the sprayer and never back toward your supply line.
It threads in between your wall holder or drop ell and the shower hose in a few minutes. The washer comes pre-installed and thread seal tape is in the box, so there is nothing else to buy. Standard 1/2 inch threads fit any handheld shower and hose sold in the US and Canada, and it's backed by our lifetime warranty.
FEATURES & BENEFITS
- Dual check valve protection stops dirty water from flowing back into your clean water line.
- Solid stainless steel body won't crack like plastic and the finish won't flake.
- Universal 1/2" fit works with any handheld shower and hose sold in the US or Canada.
- Installs in minutes between the holder or drop ell and the hose, washer pre-installed.
- No flow restrictor inside, so your handheld keeps its full spray.
- Six finishes to match the rest of your shower trim.
WHAT’S INCLUDED
INSTALLATION & SPECS
| Manufacturer | HammerHead Showers |
| Model # | DCV-AD-XX |
| Material | Stainless Steel |
| Check Valves | 2 (dual check) |
| Connection | 1/2" NPS |
| Flow Restrictor | None |
| Lead-Free | Yes |
| Packaging Dimensions | 2.48 x 1.65 x 1.61 Inches |
| Shipping Weight | 0.19 pounds |
| Installation Method | Inline, between hose and holder or drop ell |
| Available Finishes | Chrome, Brushed Nickel, Matte Black, Polished Brass, Brushed Gold, Oil Rubbed Bronze |
| Warranty Description | Limited Lifetime Warranty |
Warranty & Returns
Built to Last
Every product is made from premium metals like stainless steel and brass. No gimmicks. Just solid metal plumbing fixtures that hold up, use after use, year after year.
Hassle-Free Returns
Not feeling it? No worries. You've got 90 days from delivery to send it back. We accept returns for any reason — just return the product in good condition with all parts, instructions, and original packaging. View Full Return Policy
Lifetime Warranty
We stand behind our products — for life. This HammerHead Showers® product comes with a limited lifetime warranty for the original homeowner. If it leaks, drips, or fails under normal use, we’ll send you replacements or repair parts — free of charge. View Full Warranty Details
