John Guest

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When purchasing a product, price is the consumer's primary concern. At present, John Guest has 216 products for sale. John Guest products range in price from $2.54 to $276.89, and the average price of all the products is about $25.92.

We found that most of the John Guest products are manufactured by Cash Acme, Reliance Worldwide Corporation, and John Guest Speedfit. The manufacturers provide John Guest with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase John Guest products on Amazon.com. The brand holds an average rating of 4.67, testifying to its excellent reputation.

John Guest Best Sellers

Last Updated: Jan 8, 2026

John Guest Speedfit 3/8 x 3/8 x 3/8 Inch Angle Stop Adapter Valve, Push to Connect Plastic Plumbing Fitting, ASVPP2LF

Pipe Fittings

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WATER SHUT OFF VALVE: Our angle stop adapter valve provides an easy way to add a water feed supply from an existing 3/8 inch compression chrome supply stop valve. These valve connectors connect between the chrome supply stop and riser to provide a water supply feed line for water filtration systems, RO systems, coffee machines, and ice makers

COMPATIBILITY: Angle stop valve connector is ideal for use with plastic or copper OD sized tubing

EASY TO USE: Angle stop valves feature a quarter turn mechanism for easy opening and closing, and push to connect technology which allows for quick connection and disconnection

LEAD FREE: Angle shutoff valve features a white polypropylene body with EPDM seals, and has lead free brass threads for long-lasting reliability

SPECS: Plumbing fittings are rated at 150 PSI at 70 degrees F and 60 PSI at 140 degrees F; NSF61 listed

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John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White

Push-to-Connect Fittings

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JOHN GUEST SHUT-OFF VALVE: This John Guest shut-off valve is manufactured in white polypropylene and fitted with food-grade EPDM O-rings; suitable for use with 3/8 inch OD plastic or soft copper tubing

EASY TO INSTALL: The twist-and-lock feature of this straight shut-off valve allows for quick and easy installation, with no tools, crimping, glue, or soldering required

SAFE, DURABLE, AND HIGH QUALITY: This shut-off valve is durable and non-toxic; provides excellent chemical resistance; NSF 61 and 51 certified

PREFERRED BY THE PRO: These shut-off valves are for use with potable water; approved for behind-the-wall applications as a permanent leak-free connection

SPECS: John Guest plastic shut-off valve fittings are rated at 150 PSI at 70 degrees Fahrenheit and 60 PSI at 140 degrees Fahrenheit

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John Guest Polypropylene Service and Repair Kit, Push to Connect Plastic Plumbing Fittings, White, KIT-ISRK

Push-to-Connect Fittings

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POLYPROPYLENE SERVICE AND REPAIR KIT: This service and repair kit includes the most popular 1/4 inch, 5/16 inch, and 3/8 inch fittings used for appliance applications

NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, leak-free connection with no tools required; fittings come in a sturdy and compartmentalized case for ease of storage and transportation

DURABLE: This durable kit provides excellent resistance against chemicals; fittings come in a sturdy and compartmentalized case for ease of storage and transportation

SPECS: These push-fit fittings can withstand a maximum of 150 PSI at 70 degrees F and 60 PSI at 140 F

SAFETY: This kit is NSF 61 and 51 certified

John Guest Speedfit 3/8 x 3/8 x 1/4 Inch Angle Stop Adapter Valve, Push to Connect Plastic Plumbing Fitting, ASVPP1LF

Pipe Fittings

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COMPATIBILITY: Angle stop valve connector is ideal for use with plastic or copper OD sized tubing

EASY TO USE: Angle stop valves feature a quarter turn mechanism for easy opening and closing, and push to connect technology which allows for quick connection and disconnection

LEAD FREE: Angle shutoff valve features a white polypropylene body with EPDM seals, and has lead free brass threads for long-lasting reliability

SPECS: Plumbing fittings are rated at 150 PSI at 70 degrees F and 60 PSI at 140 degrees F; NSF61 listed

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John Guest Blue 100 ft/roll 3/8" Polyethylene Tube Tubing Drinking Water RO Reverse Osmosis DI Aquarium Pipe LLDPE

Industrial Plastic Tubing

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John Guest 3/8 Inch x 25 Feet LLDPE Tubing, Flexible Water Tubing for Plumbing, Blue, PE-12-EI-025F-B

Industrial Plastic Tubing

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COMPATIBILITY: 3/8-inch blue LLDPE plumbing tubing can be used with most OD tubing connectors; easy-rack 250-foot spool

QUALITY: Linear low-density polyethylene is durable, flexible, odorless, tasteless, and non-toxic

DURABILITY: Provides excellent chemical resistance

SAFE: FDA-compliant material; NSF 61 and 51 certified

PERFORMANCE: Rated to 150 psi at 70 degrees Fahrenheit and 90 psi at 150 degrees Fahrenheit

John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US

Check Valves

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JOHN GUEST CHECK VALVE: This push-to-connect check valve allows you to prevent the reverse flow of water quickly and easily; suitable for reverse osmosis systems, ice makers, coffee and beverage dispensing equipment, hydroponics, and aquarium/aquatics

COMPATIBILITY: The John Guest imperial single check valve is compatible with plastic or soft copper tubing

DESIGN: This check valve is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections

DURABLE: This valve is made with durable white polypropylene that provides excellent protection against chemicals

SAFETY: These plastic check valves are manufactured with FDA-compliant material and are NSF 61 and 51 certified

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John Guest Speedfit 1/4 Inch OD Union Straight Connector, Push to Connect Plastic Plumbing Fitting, PP0408WP

Pipe Fittings

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UNION CONNECTOR: The John Guest push-to-connect union connector is designed to connect copper or plastic tubings

NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required

DESIGN: This push-to-connect fitting is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections

DURABLE: This adapter is made with durable white polypropylene that provides excellent protection against chemicals

SAFETY: These plumbing fittings are manufactured with FDA-compliant material and are NSF 61 and 51 certified

John Guest Speedfit 3/8 Inch OD Union Straight Connector, Push to Connect Plastic Plumbing Fitting, PP0412WP

Pipe Fittings

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UNION CONNECTOR: The John Guest push-to-connect union connector is designed to connect copper or plastic tubings

NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required

DESIGN: This push-to-connect fitting is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections

DURABLE: This adapter is made with durable white polypropylene that provides excellent protection against chemicals

SAFETY: These plumbing fittings are manufactured with FDA-compliant material and are NSF 61 and 51 certified

John Guest Speedfit 3/8 Inch x 3/8 Inch x 1/4 Inch OD Reducing Tee, Push to Connect Plastic Plumbing Fitting, PP30121208WP

Pipe Fittings

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JOHN GUEST TEE CONNECTOR: This reducing tee is designed for the connection of plastic or copper pipe and is approved for behind-the-wall applications as a permanent leak-free connection

DESIGN: This push-to-connect fitting is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections

DURABLE: This tee connector is made with durable white polypropylene that provides excellent protection against chemicals

SPECS: These union connectors can withstand a pressure of 150 PSI at 70 degrees F and 60 PSI at 140 degrees F

SAFETY: These plumbing fittings are manufactured with FDA-compliant material and are NSF 61 and 51 certified

John Guest Acetal Copolymer Tube Fitting Locking Clip for 1/4" Tube OD (PIC1808R) (Pack of 10)

Push-to-Connect Fittings

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Locking clip attaches tube to fitting for secure connection

Accepts nylon and polyurethane tube fittings

Made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength

Working pressure of up to 150 psi

Meets NSF/ANSI standards 14, 51, and 61 for quality assurance

John Guest Speedfit 3/8 Inch OD x 1/4 Inch OD Reducing Union, Push to Connect Plastic Plumbing Fitting, PP201208WP

Pipe Fittings

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UNION CONNECTOR: The John Guest push-to-connect reducing union connector is designed to connect copper or plastic tubings

NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required

DESIGN: This push-to-connect fitting is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections

DURABLE: This reducer is made with durable white polypropylene that provides excellent protection against chemicals

SAFETY: These plumbing fittings are manufactured with FDA-compliant material and are NSF 61 and 51 certified

John Guest Acetal Copolymer Tube Fitting, Straight Adaptor, 1/4" Tube OD x 1/4" NPTF Male (Pack of 10)

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Straight adapter connects pipes or fittings of different types in a straight line

Push-to-connect fitting connects to pipes or tubing on one end and has an NPTF male connector on the other

Made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength

Working pressure of up to 150 psi

Meets NSF/ANSI standards 14, 51, and 61 for quality assurance

John Guest 1/4 Inch x 25 Feet LLDPE Tubing, Flexible Water Tubing for Plumbing, Blue, PE-08-BI-025F-B

Industrial Plastic Tubing

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Poly tubing

NSF listed

25 foot coils

Linear low-density

Cold & intermittent hot water applications

John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP

Pipe Fittings

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JOHN GUEST MALE CONNECTOR: The John Guest male connector is a push-to-connect fitting that is used to join a 3/8 in. (OD sized) pipe and an 3/8 in. NPT thread quickly and easily

NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required

DESIGN: This male NPT connector is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections

DURABLE: This male coupler is made with durable white polypropylene that can protect against chemicals

SAFETY: These MNPT connectors are manufactured with FDA-compliant material and are NSF 61 and 51 certified

John Guest Speedfit 3/8 Inch Compression Female Connector, Push to Connect Plastic Plumbing Fitting, White, PSEI6012U9P

Push-to-Connect Fittings

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FAST INSTALLATION: Push-fit design connects or disconnects 3/8 in OD tubing to 3/8 in threads without tools

DURABLE BUILD: White polysulfone body with EPDM O-ring ensures lasting performance

WIDE USE: Works with plastic or copper tubing for filtration, beverage, and vending systems

CERTIFIED SAFE: Meets NSF 61 and ASSE 1061; supports 160 PSI at 73 degrees F and 100 PSI at 180 degrees F

COMPACT FIT: 9/16–24 UNEF thread design allows secure connection in tight spaces

John Guest 3/8 Inch O.D. Tube Size x 1/4 Inch NPTF Speedfit to Female Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV501222WP

Pipe Fittings

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JOHN GUEST FEMALE SHUT-OFF VALVE: This John Guest female shut-off valve is manufactured in white polypropylene and fitted with food-grade EPDM O-rings; suitable for use with 3/8 inch plastic or soft copper tubing

EASY TO INSTALL: The twist-and-lock feature of this female angle shut-off valve allows for quick and easy installation, with no tools, crimping, glue, or soldering required

SAFE, DURABLE, AND HIGH QUALITY: This female shut-off valve is durable and non-toxic; provides excellent chemical resistance; FDA-compliant and NSF 61 and 51 certified

PREFERRED BY THE PRO: These shut-off valves are for use with potable water; approved for behind-the-wall applications as a permanent leak-free connection

SPECS: John Guest plastic shut-off valve fittings are rated at 150 PSI at 70 degrees Fahrenheit and 60 PSI at 140 degrees Fahrenheit

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John Guest 1/4 Inch x 25 Feet LLDPE Tubing, Flexible Water Tubing for Plumbing, Natural, PE-08-BI-025F-N

Industrial Plastic Tubing

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COMPATIBILITY: 1/4-inch natural-colored LLDPE plumbing tubing can be used with most OD tubing connectors; easy-rack 250-foot spool

QUALITY: Linear low-density polyethylene is durable, flexible, odorless, tasteless, and non-toxic

DURABILITY: Provides excellent chemical resistance

SAFE: FDA-compliant material; NSF 61 and 51 certified

PERFORMANCE: Rated to 150 psi at 70 degrees Fahrenheit and 90 psi at 150 degrees Fahrenheit

JOHN GUEST 1/4" One Way Check Valve RO Reverse Osmosis Water Filter NSF Certifie

Check Valves

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External Testing Certification NSF

John Guest fittings

John Guest FAQs

Is John Guest Legit?

Yes, John Guest is a legitmate brand on Amazon. After conducting a comprehensive analysis of 384 customer reviews for John Guest products on Amazon, we have determined its average rating. With a strong performance and good quality, John Guest has received an average rating of 4.67 from numerous buyers, indicating that John Guest are trustworthy and live up to their claims. Therefore, it is safe to make purchases from John Guest on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more John Guest products?

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How does findthisbest choose the top John Guest products?

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How can I purchase John Guest products via FindThisBest?

Go to the John Guest page.
Select the product you want in the John Guest buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product John Guest Speedfit 3/8 x 3/8 x 3/8 Inch Angle Sto..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the John Guest products?

Most of the John Guest products are produced by Cash Acme, Reliance Worldwide Corporation, and John Guest Speedfit. The manufacturers provide John Guest with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the John Guest products, helping you make more informed buying decisions. We recommend best choices of the products from the John Guest brand, helping you make better shopping choices with less time and energy.

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