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Black 4-inch threaded cap fitting with smooth finish

Legend Valve

Legend Valve 350-491 4" Black Cap tubing

SKU CH-SDBE-WPF7M

Four-inch black cap fitting with female threads for plumbing connections

  • 4" SA Black Cap FNPT fits standard plumbing connections
  • New Legend Valve 350-491 ensures reliable quality
  • California Prop 65 warning informs safe handling practices
  • Direct manufacturer shipping reduces transit handling steps
  • Orders $75 or more ship free saving delivery cost

Legend Valve 350-491 4" Black Cap

This Legend Valve 350-491 is a 4" black cap fitting designed for plumbing systems. It serves installers and maintenance teams who need to terminate a female NPT thread securely. The component provides a straightforward closure point in pipe networks.

Build quality and daily implications

The cap carries a California Proposition 65 warning for chemicals known to cause cancer and birth defects or other reproductive harm. Installers should handle the part with appropriate protective equipment and follow local safety regulations during fitting and disposal.

Bundled accessories and software impact

No additional accessories, tools or software are included with this fitting. The item ships directly from the manufacturer and qualifies for free shipping on orders of $75 or more, though that threshold is a commercial detail rather than a product attribute.

Highlights

  • 4" SA Black Cap FNPT fits standard plumbing connections
  • New Legend Valve 350-491 ensures reliable quality
  • California Prop 65 warning informs safe handling practices
  • Direct manufacturer shipping reduces transit handling steps
  • Orders $75 or more ship free saving delivery cost

Specifications

BrandLEGEND VALVE

Questions about this item

What pipe size does the 4" FNPT thread on this Legend Valve 350-491 cap fit?

The cap uses a 4-inch FNPT thread designed to seal standard NPT pipe of the same nominal size.

What clearance is needed to install this 4" black cap on a pipe end?

Allow enough space for a pipe wrench to engage the cap flats without striking surrounding fittings or walls.

Which step is commonly missed when threading this FNPT cap onto a pipe?

Applying fresh PTFE tape or pipe dope to the male threads before tightening prevents leaks.

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