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Homewerks 1/2 in. D X 1/2 in. D FIP PVC Spring Loaded Check Valve

Opens at just 1.31 PSI, so backflow gets stopped before it starts, and it mounts either horizontal or vertical.
Kbi MPN VCKP40B3B In Stock & Ready to Ship
$9.59
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days

About Product Overview

This 1/2" PVC check valve uses a spring-loaded design to keep water flowing one direction and stop backflow cold. The spring mechanism opens at just 1.31 PSI, so it responds fast in low-pressure lines, and it mounts either horizontal or vertical depending on how your pipe run is laid out. Lead-free PVC construction with FIP connections on both ends makes it a solid fit for potable water and general plumbing repairs.

  • Material: PVC, lead-free
  • Connection: 1/2" FIP inlet and outlet
  • Maximum pressure: 150 PSI / Maximum temperature: 140°F
  • Mounting: horizontal or vertical
  • End-to-end length: 4-1/8"

The Details Specifications

Brand Kbi
Model / MPN VCKP40B3B
UPC 879420001771
Weight Under 1 lb
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

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On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Kbi. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Kbi

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