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Customers who have purchased push-in fittings for small diameter tubing have also been:
to larger push-in quick connect fittings - to ProBite™ full flow push-connect fittings
to white polyethylene tubing - to soft copper tubing - to lead-free compression fittings
to clear and braided vinyl tubing - to pipe fittings index - to pipe, tubing and accessories
looking for more lead free products?

Simple, straightforward and low shipping rates for these quick connect fittings.


Small Diameter Tubing Quick Connect Fittings

John Guest Push-Fit Fittings


John Guest fittings are a quick and inexpensive way to make a connection for your refrigerator, reverse osmosis filters, or for your faucets. They are also so strong and durable that they are used in commercial applications like soda fountains and commercial icemakers. They are lead free and safe for all drinking water applications, as well as being very easy to install and put in use. Making repairs fast and easy. Looking for more push-fit connectors? Click here.

All of these John Guest quick connect fittings are compliant with new lead free regulations.
click here for more information

sample push-in quick connect fitting
These Push-In Tube Fittings Feature:
  • No expensive speciality tools required to make a good connection
  • Durable polypropylene constructed fittings
  • Food grade EPDM o-rings provide a durable leak proof seal
  • Polypropylene collets with stainless steel teeth provide grip on the tube
  • Simple disconnect - simply push the collet to release and remove the tube
  • Fittings for tubing ranging from 1/4" O.D. to 1/2" O.D.
  • Maximum pressure is 150 psi at 70°F and 60 psi at 140°F
  • Great for water filters, refrigerator filters, RO filters, ice makers, and more
  • Order as few as you like! No minimums!
  • Quantity discounts available - BUY MORE, SAVE MORE
  • Click here to learn more about these fittings

Male Connector O.D. NPT Price & Quantity
male connecter 1/4" 1/8" $1.45
1/4" 1/4" $1.67
1/4" 3/8" $2.31
3/8" 1/4" $2.51
3/8" 3/8" $2.89
3/8" 1/2" $4.55
1/2" 3/8" $3.93
1/2" 1/2" $4.25
-- Click here to learn more about abbreviations used on this page

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Stem Adapter Stem O.D. NPT Price & Quantity
Stem Adapter 1/4" 1/8" $0.80
1/4" 1/4" $0.80
3/8" 3/8" $0.97
3/8" 3/8" $1.25
1/2" 3/8" $2.03
1/2" 1/2" $2.02
-- Click here to learn more about abbreviations used on this page

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Reducer Stem O.D. O.D. Price & Quantity
Reducer 3/8" 1/4" $2.56
1/2" 3/8" $4.80
-- Click here to learn more about abbreviations used on this page

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Plug Stem O.D. Price & Quantity
Plug 1/4" $0.63
5/16" $0.77
3/8" $1.08
1/2" $1.65
-- Click here to learn more about abbreviations used on this page

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Union Tee O.D. Price & Quantity
union tee 1/4" x 1/4" x 1/4" $3.24
5/16" x 5/16" x 5/16" $3.53
3/8" x 3/8" x 3/8" $3.94
1/2" x 1/2" x 1/2" $4.99
-- Click here to learn more about abbreviations used on this page

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Swivel Branch Tee O.D. NPT Price & Quantity
Swivel Branch Tee 1/4" 1/8" $4.39
1/4" 1/4" $4.38
3/8" 1/4" $5.28
3/8" 3/8" $5.48
-- Click here to learn more about abbreviations used on this page

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Swivel Male Run Tee O.D. NPT Price & Quantity
Swivel Male Run Tee 1/4" 1/8" $4.37
1/4" 1/4" $4.35
3/8" 1/4" $5.25
3/8" 3/8" $5.53
-- Click here to learn more about abbreviations used on this page

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Tube to Hose Stem Stem O.D. Hose I. D. Price & Quantity
Tube to Hose Stem 3/8" 3/8" $2.31
3/8" 1/2" $3.11
1/2" 3/8" $2.44
1/2" 1/2" $3.05
-- Click here to learn more about abbreviations used on this page

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Union Connector O.D. Price & Quantity
union connector 1/4" x 1/4" $2.26
5/16" x 5/16" $2.47
3/8" x 3/8" $3.04
1/2" x 1/2" $3.58
-- Click here to learn more about abbreviations used on this page

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Reducing Union Connector O.D. O.D. Price & Quantity
reducing union connector 3/8" 1/4" $3.18
1/2" 3/8" $4.23
-- Click here to learn more about abbreviations used on this page

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Union Elbow O.D. Price & Quantity
union elbow 1/4" x 1/4" $2.59
5/16" x 5/16" $2.73
3/8" x 3/8" $3.93
1/2" x 1/2" $4.65
-- Click here to learn more about abbreviations used on this page

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Swivel Elbow O.D. NPT Price & Quantity
swivel elbow 1/4" 1/8" $3.69
1/4" 1/4" $3.65
3/8" 1/4" $5.22
3/8" 3/8" $5.50
-- Click here to learn more about abbreviations used on this page

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Reducing Elbow O.D. O.D. Price & Quantity
reducing elbow 5/16" 1/4" $3.29
3/8" 1/4" $3.59
1/2" 3/8" $5.38
-- Click here to learn more about abbreviations used on this page

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Fixed Elbow O.D. NPT Price & Quantity
Fixed Elbow 1/4" 1/8" $2.26
1/4" 1/4" $2.60
1/4" 3/8" $3.11
3/8" 1/4" $3.43
3/8" 3/8" $3.53
-- Click here to learn more about abbreviations used on this page

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Plug In Elbow Stem O.D. O.D. Price & Quantity
Plug In Elbow 1/4" 1/4" $2.32
5/16" 5/16" $3.20
3/8" 1/4" $3.15
3/8" 3/8" $3.92
1/2" 1/2" $4.81
-- Click here to learn more about abbreviations used on this page

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Reducing Tee O.D.
( A )		 O.D.
( B )		 O.D.
( C )		 Price & Quantity
reducing tee 3/8" 1/4" 3/8" $4.27
3/8" 3/8" 1/4" $4.19
1/2" 1/2" 3/8" $5.55
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to many water filter faucets

Filter Faucet Connector O.D. 1/4" Compression Female
(Thread UNS)		 Price & Quantity
faucet connector 1/4" 1/4" compression female
(7/16" - 24 threads)		 $3.29
3/8" 1/4" compression female
(7/16" - 24 threads)		 $3.43
-- Click here to learn more about abbreviations used on this page
-- This item is designed to provide a push-fit connection for easily installing 1/4" or 3/8" tubing. Click here to see sample.

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Female Adapter O.D. NPTF Price & Quantity
female adapter 1/4" 1/8" $5.03
1/4" 1/4" $5.23
3/8" 1/4" $5.38
3/8" 3/8" $6.97
-- Click here to learn more about abbreviations used on this page

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Locking Clip For O.D. Price & Quantity
locking clip 1/4" $0.22
5/16" $0.28
3/8" $0.22
1/2" $0.26
-- Click here to learn more about abbreviations used on this page

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How To Use These Great Push To Connect Fittings...

To make a connection, the tube is simply pushed in by hand; the unique collet locking system then holds the tube firmly in place without deforming the tube or restricting flow.

Start by pushing the tube into the fitting and up to the tube stop.

After the tube has been inserted, pull on the tube to check that it is secure.

It's a good idea to use a simple tube cutter for a square cut and to remove burrs and any sharp edges.

To disconnect, ensure that the system is depressurized, push the collet square against the fitting. With the collet held in this position the tube can be removed.

Abbreviations/Terms
  • O.D. -- Outside Diameter
  • NPT -- National Pipe Thread
  • NPTF -- National Pipe Thread Female (threads on the inside of fitting)
  • UNS -- Unified National Special (see F.A.Q. directly below)
  • EPDM -- Ethylene Propylene Diene Monomer (rubber)
  • Thread UNS -- Unified National Special threads - see explanation in FAQs below for more info

Frequently Asked Questions

Q. "Do you offer John Guest fittings in larger sizes?"
A. We do, please click here for larger push fit quick connect fittings.

Q. "I have heard of National Pipe Threads (NPT) but what does 'Thread UNS' mean?"
A. UNS stands for "Unified National Special" threads. The 7/16" x 24 threads on this fitting are a special 1/4" od compression female thread, (same female thread as a brass compression nut). This special fitting is used to attach directly to the male inlet threading on filter faucets that have 1/4" compression inlets.

Q. "What are the locking clips used for?"
A. The locking clips are used for extra protection when a Quick Connect Push-In fitting is used excessively and the tubing is removed and reinserted a lot. The locking clips are to be inserted directly behind the collet.

Q. "What does it mean to have ANSI Certification for lead free plumbing products?"
A. Laws requiring plumbing products that come in to contact with drinking water to be essentially lead-free (0.25% weighted average) have been passed in California and Vermont. In order for companies to ship these plumbing products to locations in CA and VT, they must be ANSI certified lead free.

Q. "What is CA AB 1953 and VT S.152?"
A. CA AB 1953 is a California Assembly Bill that defines "lead free" to mean not more than a weighted average of 0.25% lead content in pipe and fittings. VT S.152 is a Vermont Senate Bill that mimics the California AB 1953 and regulates the amount of lead to a weighted average of 0.25% or less.



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