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John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV041212WP

Q: How do you install it to get it watertight? Looked for youtube videos - no luck!

The fitting itself is watertight. If its not, its defective. Once you push the pipe into this fitting you will feel it "pop" or "slip" into the seat where it becomes watertight. If its sitting right, you should not be able to pull this pipe out, nor should there be any leakage from it.

Q: Can you control the speed of water flow through this valve?

I don't see why not. For my use, it's only open or closed. You would actually be controlling the amount of flow not the speed.

Q: Does this value have or require a california proposition 65 warning for california residents? thanks!

Prop65 applies to any material, the warning is required even if a trace amount of over 1000 substances from the Prop65 list maybe present. We have the warning on our bags to comply with the requirement of the Prop65 regulation for “clear and reasonable” warning.

Q: Does this work with 1/4 in drip irrigation tubing?

I used it with a 1/4" pex line for a fridge filter not totally sure about the irrigation line, you can try it out for a test before installing to be sure. A good sharp tubing cutter will help for a better seal and fit. Good Luck

Product ID: 280022204

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Details

Size
3/8 in. Tube
Material
polyprolylene
Brand
John Guest
Colour
White
Item dimensions L x W x H
15 x 4 x 8

💧NSF certified for potable water

⚙️150 PSI max pressure

🛠️Tool-free twist-and-lock install

Frequently Bought Together

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Description

🔧 Upgrade your plumbing game with effortless, leak-proof control!

BUILT TO LAST - Durable polypropylene body with food-grade EPDM O-rings ensures chemical resistance and leak-free performance.
CERTIFIED SAFE - NSF 61 & 51 certified for potable water use—trusted behind-the-wall for permanent peace of mind.
PRESSURE READY - Handles up to 150 PSI at 70°F and 60 PSI at 140°F—reliable under demanding conditions.
COMPACT LIGHTWEIGHT - Sleek 3/8 inch OD fitting weighing just 29g—perfect for professional and DIY projects alike.
EFFORTLESS INSTALLATION - Push-to-connect design means no tools, glue, or soldering—get it done in seconds.

The John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve is a high-quality, tool-free push-to-connect plumbing fitting made from durable polypropylene with food-grade EPDM O-rings. Certified NSF 61 and 51 for potable water, it supports pressures up to 150 PSI at 70°F, making it ideal for behind-the-wall installations and hydronic heating systems. Lightweight and easy to install, it delivers professional-grade reliability without the hassle.

Specifications

Manufacturer	Reliance Worldwide Corporation
Part number	PPSV041212WP
Item Weight	29 g
Product Dimensions	15 x 4 x 8 cm; 29 g
Item model number	PPSV041212WP
Size	3/8 in. Tube OD
Color	White
Finish	polyprolylene
Material	polyprolylene
Item Package Quantity	1
Number Of Pieces	1
Number of Handles	1
Measurement System	inch
Specification met	NSF, fda
Specific uses	Amateur, Professional
Included components	Valve
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

How do you install it to get it watertight? Looked for youtube videos - no luck!

Can you control the speed of water flow through this valve?

Does this value have or require a california proposition 65 warning for california residents? thanks!

Does this work with 1/4 in drip irrigation tubing?

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