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Water Shut-off Valves

These valves are 2014 Federal Safe Drinking Water Act compliant

You'll find one of the best selections of angle and straight stops at PlumbingSupply.com®! Available in many different configurations, the perfect solution to your supply needs is right here. Compression, IPS, and even dual or 3-way stops are offered and can ship out the same day you order in most cases. Let us be your source for stop valves for any job.

Angle Stops

Most often used for connecting wall stubouts to supply lines for a fixture, such as a toilet or faucet, an angle stop provides an easy way to turn off the water to just that fixture instead of the entire house.

1/2" FIPS Inlet Angle Stops

Angle and Straight Stops

Polished Chrome Plated
Inlet x Outlet Compression Valve Quarter Turn Valve
1/2" FIP x 1/2" & 7/16" S.J. (slip joint) $5.99 $7.25
1/2" FIP x 1/4" OD Compression (includes nut & sleeve) $5.45 $6.67
1/2" FIP x 3/8" OD Compression (includes nut & sleeve) $5.41 $5.72

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5/8" OD Compression Inlet Angle Stops

Angle and Straight Stops

Polished Chrome Plated - for 1/2" Nominal Copper Pipe
Inlet x Outlet Compression Valve Quarter Turn Valve
5/8" OD Comp x 1/4" OD Comp (includes nut & sleeve) $7.13 -
5/8" OD Comp x 3/8" OD Comp (includes nut & sleeve) $5.00 $6.08
5/8" OD Comp x 1/2" OD Comp (includes nut & sleeve) -- $5.34
5/8" OD Comp x 1/2" & 7/16" S.J. (includes nut & sleeve) - $7.20

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3/8" FIPS Inlet Angle Stops

Angle and Straight Stops10731LF
View image of chrome compression inlet quarter turn angle stopKTR15XC

Polished Chrome Plated
Model # Inlet x Outlet Quarter Turn Valve
10731LF 3/8" FIPS x 3/8" OD Compression (includes nut & sleeve) $5.69
KTR15XC 3/8" FIPS x 3/8" OD Compression (includes nut & sleeve) $13.97

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Straight Stops

Pipe stubouts extending from the floor typically utilize straight stops for connecting to supply lines. Having a stop near a fixture allows the water to be turned off for just that fixture without disrupting the water flow to the rest of a home or business.

1/2" FIPS Inlet Straight Stops

Angle and Straight Stops

Polished Chrome Plated
Inlet x Outlet Compression Valve Quarter Turn Valve
1/2" FIPS x 3/8" OD Compression (includes nut & sleeve) $6.79 $7.98
1/2" FIPS x 1/2" S.J. (slip joint) $6.90 --

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5/8" OD Compression Inlet Straight Stops

Angle and Straight Stops

Polished Chrome Plated - for 1/2" Nominal Copper Pipe
Inlet x Outlet Compression Valve Quarter Turn Valve
5/8" OD Comp x 3/8" OD Comp (includes nut & sleeve) $6.23 $6.46

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Double Handle Angle Stops

Two independent outlets from one inlet allows you to provide water to both outlets at the same time, individually to one or other outlet, or shut-off both outlets.

5/8" OD Compression Double Handle, Three-Way Angle Stops

Angle and Straight Stops

Two Handle/Three Way Angle Stop - 5/8" OD Comp Inlet x 3/8" OD Comp Outlets = $17.17

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Three Way Angle Stops

Designed to allow the shutoff of multiple fixtures, three way valves are commonly used in the residential kitchen to allow isolation of a faucet and a dishwasher or a faucet and a filter, in the case of repair or replacement. Three way valves with one handle turn off the water at the point of entry, helping to prevent water damage.

5/8" OD Compression Three-Way Angle Stops

Polished Chrome Plated - for 1/2" Nominal Copper Pipe
Inlet x Outlet Price & Quantity
5/8" OD Comp x 3/8" OD Comp x 1/4" OD Comp (includes nut & sleeve)
  - ANGLE style compression valve
$11.15
5/8" OD Comp x 3/8" OD Comp x 3/8" OD Comp (includes nut & sleeve)
  - ANGLE style compression valve
$8.57
5/8" OD Comp x 3/8" OD Comp x 3/8" OD Comp (includes nut & sleeve)
  - TEE style quarter-turn valve
$16.35

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1/2" FIPS Inlet Three-Way Angle Stops

Three Way Angle Stop

Polished Chrome Plated
Inlet x Outlet Compression Valve
1/2" FIPS x 3/8" OD Comp x 3/8" OD Comp (includes nut & sleeve) $10.80
1/2" FIPS x 3/8" OD Comp x 1/4" OD Comp (includes nut & sleeve) $8.94

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Quick Tee Adapters

Create a branch outlet on a supply stop without shutting off the main water supply with durable brass quick-tee adapters. The swivel screw on hook-up means no drilling or extra valves are needed to connect multiple accessories. Works with both hot and cold water lines, and is ideal for ice makers, dishwashers, or water filter faucets.

Adapter

Inlet x Outlet Price & Quantity
3/8" Female Compression x 3/8" Male Compression x 1/4" Male Compression $7.11
3/8" Female Compression x 3/8" Male Compression x 3/8" Male Compression $7.15
1/2" Female Compression x 1/2" Male Compression x 3/8" Male Compression $8.22
1/2" FIPS Slip Joint x 1/2" MIPS Slip Joint x 1/4" Male Compression $7.71
1/2" FIPS Slip Joint x 1/2" MIPS Slip Joint x 3/8" Male Compression $8.89

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Related Items & Accessories



Common Terms and Definitions
  • C, SWT, or Socket: A regular hub or socket. The pipe fits (sweats/solders) inside this
  • Mips: Male pipe threads on the outside of fitting
  • Fips: Female pipe threads on the inside of fitting
  • FTG: The same size as the pipe. Will fit inside a socket (hub) fitting
  • Hyset: Has a nailing flange on the front of the fitting
  • Dropear: Has a nailing flange on the back of the fitting
  • Nominal: Used to describe copper pipe and fittings in plumbing. Refers to the inside diameter of the pipe which varies by thickness of the pipe. The outside is a constant size and is always 1/8" larger than the nominal size. Example: 1/2" nominal is always 5/8" O.D.



Frequently Asked Questions

Q. "What does compression style and 1/4 turn style (angle stop or straight stop) mean?"
A. The compression style in this case is referring to the way the water is shut off when the valve is closed. Please do not confuse this with the inlet or outlet size which can also be referred to as "compression". The handle is attached to a stem with a rubber washer on the other end. As the handle is turned to close the valve (clockwise), the rubber washer is forced (compressed) against the "seat" which is the metal opening of the waterway. 1/4 turn style valves have inside the stem a port that when the handle is turned one quarter of a turn counterclockwise, the valve is open fully and the same quarter turn in the opposite direction closes the valve completely.

Q. "How do I know if I need 1/2" Fip inlet or 5/8" o.d. inlet angle stops?"
A. Angle or straight stops have an inlet that is either 1/2" fip (female iron pipe) or 5/8" o.d. copper compression. The 1/2" fip stops are for attaching to threaded pipe nipples. The copper compression fittings are designed to attach to the smooth outside surface of copper pipe. 5/8" o.d. compression would fit a 1/2" nominal piece of copper.

Q. "What is the difference between 'nominal' dimensions and 'outside diameter (OD)' dimensions?"
A. Nominal is the term used to describe most pipe and fitting measurements in the plumbing industry. Nominal refers to the inside diameter measurement of the pipe. The actual inside pipe measurements will vary slightly due to the wall thickness of the pipe, so it is referred to as "nominal" meaning a small variance of size. The outside diameter (OD) dimensions refer to the actual outside diameter of the pipe. The outside diameter dimensions of pipe are a constant size which allow pipe fittings to be used with the same type of piping with multiple grades of wall thickness.

Q. "Some of the outlet sizes are shown as 3/8" OD or 5/8" OD compression nut w/sleeve. Is this measurement referring to the outside diameter of the compression nut?"
A. No, it is not. Copper compression fitting sizes are measured and sized according to the outside diameter (OD) of the copper tubing or copper pipe for which they will be used.

Q. "How are lead levels in drinking water currently regulated?"
A. The United States Environmental Protection Agency (EPA) regulates the amount of lead and other contaminants in drinking water under guidelines established in the 2014 Federal Safe Drinking Water Act.

Q. "I'm hearing a lot about lead-free these days. What does that have to do with plumbing products and how does the new lead-free legislation affect me?"
A. Basically, the laws implemented Jan. 1st, 2014 require plumbing products that come in contact with drinking water to be "essentially lead free" (less than 0.25% weighted average). For further information about how the law determines what is "lead free", rules regarding which plumbing products must be "lead free", and who these laws will affect, please click here.


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