We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Galvanised reducing coupling, 6 by 4 inches, threaded ends

Legend Valve

Legend Valve 352-575C 6" X 4" Galv Reducing Coupl bathware

SKU CH-BGYG-WKSBQ

Galvanized reducing coupling joins 6-inch and 4-inch FNPT pipes for plumbing installations

  • Size6 in × 4 in
  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Reduces pipe diameter from 6" to 4
  • Galvanised coating protects against corrosion
  • Female NPT threads on both ends for secure joints
  • California Proposition 65 warning for cancer risk
  • California Proposition 65 warning for reproductive harm risk

Galvanised Reducing Coupling 6" X 4

This galvanised reducing coupling connects a 6-inch female NPT pipe to a 4-inch female NPT pipe. It is manufactured by Legend Valve and finished in a transparent coating. The fitting is designed for standard plumbing installations where a step-down in pipe diameter is required.

Suited for installers joining dissimilar pipe sizes

Plumbers and maintenance teams needing a durable transition between 6-inch and 4-inch threaded lines will find this coupling appropriate. It is not intended for systems that require a straight coupling of identical diameters or for applications specifying a different material or pressure rating.

California Proposition 65 notices apply

The product carries warnings for chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. No additional accessories, sealants or software are supplied with the coupling.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $211.99
Pricier than about 87% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameLEGEND VALVE
Product colorTransparent
Product typePipes, Valves & Fittings
Size & build
Size6 in × 4 in

Questions about this item

What size pipe threads do I need on both sides to install this 6" X 4" galvanized reducing coupling?

The fitting has 6-inch FNPT threads on one end and 4-inch FNPT threads on the other, so you need matching male NPT pipes or nipples in those two sizes.

Will this galvanized coupling thread directly onto my existing black iron pipe without an adapter?

Yes, both ends use standard FNPT threads, so the coupling screws onto any male NPT pipe of the correct diameter regardless of the pipe's finish.

How can I confirm the joint is watertight after I tighten the coupling onto the pipes?

Pressurize the line and check for leaks at both threaded connections; a properly sealed joint will hold pressure with no visible water seepage.

More in Bath Accessories & Soap Dispensers

Similar items