QickTite Repair Fittings

for Copper, CPVC, PEX and Polybutylene

Need to perform a plastic tubing repair for an mobile home, RV, manufactured home, or residential home? You've come to the right place! Qest/Qicktite fittings are designed to work great with plastic tubing, or any pipe that is Copper Tube Size. These heavy duty compression fittings install easily with just a wrench! We can't imagine an easier solution than these fittings, which allow you to perform quick, easy repairs in those all-too-common, hard-to-reach, tight spaces. Save time and money with fittings from PlumbingSupply.com®.

Shop Repair Fittings by Size

Shop Repair Fittings by Type

click any of the images below to be directed to that section
repair couplingFits over copper tube-sized PEX, CPVC, Copper, & Polybutylene pipe
QickTite® fittings are rated 180° F. maximum temperature

Couplers / Couplings (aka Unions)
Nominal x Nominal

Coupling
Polyb Coupling
Shown: 1/2" x 1/2" Coupling
Size Price & Quantity
1/4" x 1/4" $7.13
3/8" x 1/4" $7.12
3/8" x 3/8" $7.50
1/2" x 1/4" $9.60
1/2" x 3/8" Temporarily Unavailable
1/2" x 1/2" $8.53
3/4" x 1/2" $11.94
3/4" x 3/4" $12.48
1" x 3/4" $15.15
1" x 1" $15.98
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90° Elbows
Nominal x Nominal

Polyb Elbow
Shown: 3/4" x 3/4" 90° Elbow
Size Price & Quantity
1/4" x 1/4" $7.82
3/8" x 1/4" $6.37
3/8" x 3/8" $8.81
1/2" x 1/4" $7.37
1/2" x 3/8" $10.37
1/2" x 1/2" $10.66
3/4" x 1/2" $14.29
3/4" x 3/4" $15.90
1" x 1/2" $12.95
1" x 3/4" $18.50
1" x 1" $19.30
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90° Male Elbow Adapters
Nominal x Mips

Male elbow adapter
Shown: 1/2" N x 1/2" Mips 90° Elbow
Size Price & Quantity
SUPER SALE
3/8" N x 3/8" Mips $5.34
while supplies last
1/2" N x 3/8" Mips $5.90
while supplies last
3/4" N x 3/4" Mips $6.41
while supplies last
FOR potable/drinking water
Size Price & Quantity
3/8" x 3/8" $7.30
1/2" x 3/8" $6.99
1/2" x 1/2" $10.64
3/4" x 3/4" $17.27
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90° Female Elbows
Nominal x Fips

Polyb Female Elbow
Shown: 1/2" N x 1/2" Fips 90° Elbow
Size Price & Quantity
3/8" N x 1/2 Fips $3.07
1/2" N x 1/2" Fips $8.19
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Drop Ear 90° Female Elbows
Nominal x Fips

Polyb Drop Ear Elbow
Shown: 3/4" N x 3/4" Fips Drop Ear 90° Elbow
Size Price & Quantity
1/2" N x 1/2 Fips $9.98
1/2" N x 3/4" Fips $10.18
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Tees - Nominal x Nominal x Nominal
Complete with cone & grip ring

Tee
Shown: 1/2" x 3/8" x 1/2" Tee
Size (A x B x C) Price & Quantity
1/4" x 1/4" x 1/4" $8.55
3/8" x 1/4" x 1/4" $7.18
3/8" x 3/8" x 1/4" $7.18
3/8" x 3/8" x 3/8" $9.04
1/2" x 3/8" x 3/8" $11.97
1/2" x 3/8" x 1/2" $10.85
1/2" x 1/2" x 1/4" $9.82
1/2" x 1/2" x 3/8" $11.88
1/2" x 1/2" x 1/2" $11.90
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Size - (A x B x C) Price & Quantity
3/4" x 1/2" x 1/2" $17.01
3/4" x 1/2" x 3/4"  N/A 
3/4" x 3/4" x 1/2" $17.08
3/4" x 3/4" x 3/4" $18.10
1" x 3/4" x 1/2" $15.44
1" x 3/4" x 3/4" $16.32
1" x 3/4" x 1" $16.11
1" x 1" x 3/4" $22.56
1" x 1" x 1" $23.09
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Male Adapters - Nominal x Mips
Complete with cone & grip ring

Male Adapter
Shown: 1/2" N x 1/2" Mips Adapter
Size Price & Quantity
SUPER SALE
1/4" N x 1/2" Mips $7.60
while supplies last
3/8" N x 3/8" Mips $10.72
while supplies last
1/2" N x 3/8" Mips $9.06
while supplies last
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FOR potable / drinking water
Size Price & Quantity
1/4" N x 3/8" Mips $6.28
3/8" N x 1/2" Mips $10.21
1/2" N x 1/2" Mips $12.00
1/2" N x 3/4" Mips $14.50
3/4" N x 1/2" Mips $17.17
3/4" N x 3/4" Mips $24.95
3/4" N x 1" Mips $23.55
1" N x 3/4" Mips $28.94
1" N x 1" Mips $45.55
Don't see the size you need for potable water? You can use a female adapter (shown below) and a stainless steel nipple
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Female Adapters - Nominal x Fips
Complete with cone & grip ring

Female Adapter
Shown: 3/4" N x 3/4 Fips Adapter
Shown: Individual Parts
Size Price & Quantity
1/2" N x 1/2" Fips $7.21
1/2" N x 3/4" Fips $9.50
3/4" N x 3/4" Fips $10.49
3/4" N x 1" Fips $10.76
1" N x 3/4" Fips $12.89
1" N x 1" Fips $12.81
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Female Coupling - Fips x Fips

Image of a female coupling for polybutylene pipe
Shown: 3/4" Fips x 3/4" Fips Coupling
Size Price & Quantity
1/2" Fips x 1/2" Fips $3.33
3/4" Fips x 3/4" Fips $4.42
1" Fips x 1" Fips $6.22
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Cap - Fips

Image of a cap for polybutylene pipe
Shown: 1/2" Fips Cap
Size Price & Quantity
1/2" Fips $2.32
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Plugs

Image of a plug for polybutylene pipe
Shown: 1/2" Octagonal Head Plug
Size Price & Quantity
1/2" - octagonal head $1.82
3/4" - square head $2.16
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Angle Stop Valves

Size Nuts, Cones,
& Grip Rings
Price & Quantity
1/2" FPT x 1/2" MPT None $10.68
1/2" FPT x 3/8" OD (1/4" N) 1 Each $11.76
1/2" FPT x 1/2" OD (3/8" N) 1 Each $11.20
1/2" N x 3/8" OD (1/4" N) 2 Each $13.43
1/2" N x 1/2" OD (3/8" N) 2 Each $13.47
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Straight Stop Valves

Size Nuts, Cones,
& Grip Rings
Price & Quantity
1/2" FPT x 1/2" MPT None Temporarily Unavailable
1/2" MPT x 1/2" MPT None $11.19
3/4" MPT x 1/2" MPT None $11.36
1/2" FPT x 3/8" OD (1/4" N) 1 Each $13.97
1/2" FPT x 1/2" OD (3/8" N) 1 Each $10.01
3/8" N x 3/8" OD (1/4" N) 2 Each $15.95
3/8" N x 1/2" OD (3/8" N) 2 Each $10.99
1/2" N x 3/8" OD (1/4" N) 2 Each $16.73
1/2" N x 1/2" OD (3/8" N) 2 Each $17.37
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In-Line Globe Shut-Off Valves - Nominal

Size Nuts, Cones,
& Grip Rings
Price & Quantity
1/2" MPT x 1/2" MPT None $20.27
3/4" MPT x 3/4" MPT None $20.30
1" MPT x 1" MPT None $21.08
1/4" N x 1/4" N 2 Each $19.13
3/8" N x 3/8" N 2 Each $19.89
1/2" N x 1/2" N 2 Each $25.98
3/4" N x 3/4" N 2 Each $23.52
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Individual Nuts - For Nominal Pipe Size

Nut
Shown: 1/2" Nut
Size Price & Quantity
1/4" $1.20
3/8" $1.20
1/2" $1.52
3/4" $2.77
1" $3.48
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Individual Grip Rings - For Nominal Pipe Size

Grip Ring
Shown: 1/2" Grip Ring
Size Price & Quantity
1/4" $0.97
3/8" $1.00
1/2" $1.01
3/4" $1.04
1" $1.07
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Cones - For Nominal Pipe Size

Cone
Shown: 1/2" Cone
Size Price & Quantity
1/4" $0.48
3/8" $0.50
1/2" $0.63
3/4" $0.65
1" $0.72
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Copper Crimp Rings
For Nominal Pipe Size

Copper Crimp Ring
Shown: 1" Copper Crimp Ring
Size (Nominal) Price & Quantity
3/8" $0.47
1/2" $0.35
3/4" $0.92
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Crimp Style Fittings
For Nominal Pipe Size

Copper Crimp CouplingShown: 1/2" Crimp Style Coupling
Size (Nominal) Price & Quantity
3/4" Elbow $4.90
1/2" Tee $6.15
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Shop Repair Fittings by Size

1/4" Repair Fittings

Description Price & Quantity
1/4" x 1/4" Coupling $7.13
1/4" x 1/4" 90° Elbow $7.82
1/4" x 1/4" x 1/4" Tee $8.55
1/4" N x 1/2" Mips Adapter
NOT FOR potable / drinking water
$7.60
while supplies last
1/4" N x 3/8" Mips Adapter $6.28
- OR - View Cart
Description Price & Quantity
1/4" N x 1/4" N In-Line Globe Shut-Off Valve $19.13
1/4" Nut $1.20
1/4" Grip Ring $0.97
1/4" Cone $0.48
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3/8" Repair Fittings

Description Price & Quantity
3/8" x 1/4" Coupling $7.12
3/8" x 3/8" Coupling $7.50
3/8" x 3/8" 90° Elbow $8.81
3/8" N x 3/8" Mips 90° Elbow
NOT FOR potable / drinking water
$5.34
while supplies last
3/8" N x 3/8" Mips 90° Elbow $7.30
3/8" N x 1/2 Fips 90° Elbow $3.07
3/8" x 1/4" x 1/4" Tee $7.18
3/8" x 3/8" x 1/4" Tee $7.18
3/8" x 3/8" x 3/8" Tee $9.04
3/8" x 3/8" Mips Adapter
NOT FOR potable / drinking water
$10.72
while supplies last
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Description Price & Quantity
3/8" N x 1/2" Mips Adapter $10.21
3/8" N x 3/8" OD (1/4" N) Straight Stop Valve
includes 2 each: nut, cone, & grip ring
$15.95
3/8" N x 1/2" OD (3/8" N) Straight Stop Valve
includes 2 each: nut, cone, & grip ring
$10.99
3/8" N x 3/8" N In-Line Globe Shut-Off Valve
includes 2 each: nut, cone, & grip ring
$19.89
3/8" Nut $1.20
3/8" Grip Ring $1.00
3/8" Cone $0.50
3/8" Copper Crimp Ring $0.47
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1/2" Repair Fittings

Description Price & Quantity
1/2" x 1/4" Coupling $9.60
1/2" x 3/8" Coupling Temporarily Unavailable
1/2" x 1/2" Coupling $8.53
1/2" x 1/2" 90° Elbow $10.66
1/2" N x 3/8" Mips 90° Elbow
NOT FOR potable / drinking water
$5.90
while supplies last
1/2" N x 3/8" Mips 90° Elbow $6.99
1/2" N x 1/2" Mips 90° Elbow $10.64
1/2" N x 1/2" Fips 90° Elbow $8.19
1/2" N x 1/2" Fips Drop Ear 90° Elbow $9.98
1/2" N x 3/4" Fips Drop Ear 90° Elbow $10.18
1/2" x 3/8" x 3/8" Tee $11.97
1/2" x 3/8" x 1/2" Tee $10.85
1/2" x 1/2" x 1/4" Tee $9.82
1/2" x 1/2" x 3/8" Tee $11.88
1/2" x 1/2" x 1/2" Tee $11.90
1/2" N x 3/8" Mips Adapter
NOT FOR potable / drinking water
$9.06
while supplies last
1/2" N x 1/2" Mips Adapter $12.00
1/2" N x 3/4" Mips Adapter $14.50
1/2" N x 1/2" Fips Adapter $7.21
1/2" N x 3/4" Fips Adapter $9.50
1/2" Fips x 1/2" Fips Coupling $3.33
1/2" FPT x 1/2" MPT Angle Stop Valve
stop valve only
$10.68
1/2" FPT x 3/8" OD (1/4" N)
Angle Stop Valve

includes 1 each: nut, cone, & grip ring
$11.76
1/2" FPT x 1/2" OD (3/8" N)
Angle Stop Valve

includes 1 each: nut, cone, & grip ring
$11.20
- OR - View Cart
Description Price & Quantity
1/2" N x 3/8" OD (1/4" N)
Angle Stop Valve

includes 2 each: nut, cone, & grip ring
$13.43
1/2" N x 1/2" OD (3/8" Nom)
Angle Stop Valve

includes 2 each: nut, cone, & grip ring
$13.47
1/2" FPT x 1/2" MPT Straight Stop Valve
stop valve only
Temporarily Unavailable
1/2" MPT x 1/2" MPT Straight Stop Valve
stop valve only
$11.19
1/2" FPT x 3/8" OD (1/4" N)
Straight Stop Valve

includes 1 each: nut, cone, & grip ring
$13.97
1/2" FPT x 1/2" OD (3/8" N)
Straight Stop Valve

includes 1 each: nut, cone, & grip ring
$10.01
1/2" N x 3/8" OD (1/4" N)
Straight Stop Valve

includes 2 each: nut, cone, & grip ring
$16.73
1/2" N x 1/2" OD (3/8" N)
Straight Stop Valve

includes 2 each: nut, cone, & grip ring
$17.37
1/2" N x 1/2" N
In-Line Globe Shut-Off Valve

includes 2 each: nut, cone, & grip ring
$25.98
1/2" MPT x 1/2" MPT
In-Line Globe Shut-off Valve

stop valve only
$20.27
1/2" Cap $2.32
1/2" Plug - octagonal head $1.82
1/2" Nut $1.52
1/2" Grip Ring $1.01
1/2" Cone $0.63
1/2" Copper Crimp Ring $0.35
1/2" Crimp Style Tee $6.15
- OR - View Cart

3/4" Repair Fittings

- OR - View Cart
Description Price & Quantity
3/4" N x 1" Fips Adapter $10.76
3/4" Fips x 3/4" Fips Coupling $4.42
3/4" MPT x 1/2" MPT Straight Stop Valve
stop valve only
$11.36
3/4" N x 3/4" N
In-Line Globe Shut-off Valve

includes 2 each: nut, cone, & grip ring
$23.52
3/4" MPT x 3/4" MPT
In-Line Globe Shut-off Valve

stop valve only
$20.30
3/4" Plug - square head $2.16
3/4" Nut $2.77
3/4" Grip Ring $1.04
3/4" Cone $0.65
3/4" Copper Crimp Ring $0.92
3/4" Crimp Style 90° Elbow $4.90
- OR - View Cart

1" Repair Fittings

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Related Items & Accessories:


Frequently Asked Questions

Q. "I purchased some 1/2" and 3/4" pipe, but I'm not sure how loose or tight they should be. How should I tighten the nuts on the couplings?"
A. Tighten until they squeak, and turn a 1/4 turn more. Don't over tighten, and you'll have a connection that will last trouble free for many years and can easily be taken apart and reused.

Q. "Can I use the above fittings to mix copper, PEX and Polybutylene pipe?"
A. The above Qest acetal fittings fit over copper, cpvc, PEX (crosslinked polyethylene) and Polybutylene pipe. They have a stainless crimp fitting and an acetal compression sleeve that fit over any of those pipes. You can have copper on one side and cpvc on the other side of the fitting, etc. They are very easy to use. They are more bulky than the old insert fittings and for tight places they might not fit or work.

Q. "I have a Qest QickTite Tee and one of the nuts keeping the polybutylene pipe attached to the Tee has cracked. To remove and replace the nut I will need to cut the metal grip ring off but then my pipe will be too short. What can I do?"
A. Since polybutylene pipe is no longer available you will need to use a piece of PEX, CPVC, or copper pipe, a QickTite nut, grip ring, and cone as well as a QickTite coupling. Cut a length of the new pipe depending on how much of the old pipe you wish to replace. Make sure it is slightly longer than the piece of pipe you will be replacing. Place the nut, grip ring and cone onto the new piece of pipe you will be using. Attach the coupling on the other end of the new pipe and then attach the other end of the coupling to your existing polybutylene pipe. If you will be replacing a length of pipe between two QickTite fittings then you won't need the QickTite coupling. Just use two each of the nuts, two each of the grip rings, and two each of the cones, and connect one set of each to both ends of the pipe to be threaded onto the existing fittings.

Example of adding new pipe to existing pipe

Q. "I get confused about CPVC sizes. What type of CPVC pipe do these fittings fit?"
A. There are two "standard" sizes in CPVC, and this can be confusing. There is the size that matches the outside diameter of copper, which is called "CTS-sized". This is the type of CPVC that we offer, and that's the size that these QEST fittings will fit. With these fittings, you simply add 1/8" to the fitting size to determine the outside diameter of the pipe that will fit. (For instance, a 1/2" QEST fitting will fit CPVC pipe that has a 5/8" outside diameter.) PLEASE NOTE: The other type of CPVC pipe is the same size as steel pipe, which is known as "IPS-sized"; these QEST fittings will NOT compress onto IPS-sized pipe.

Q. "What does Nominal mean?"
A. "Nominal" means existing in name only and refers to the inside diameter size 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. (Outside Diameter)

Nominal Size To OD Size Conversion Table
O.D. Of Pipe Nominal Pipe Size
1/4" 1/8"
3/8" 1/4"
1/2" 3/8"
5/8" 1/2"
7/8" 3/4"
1-1/8" 1"
1-3/8" 1-1/4"
1-5/8" 1-1/2"
2-1/8" 2"

Q. "How do crimp fittings work?"
A. Crimp fittings consist of two pieces: a male piece that fits inside the tubing and a crimp ring that fits over the tubing. A tool is used to crimp the ring onto the male fitting inside the tubing. This creates a permanent water/air tight seal with the tubing being captured between the two pieces.

Q. "Will your PEX crimp fittings work with my Polybutylene pipe?"
A. The crimp fittings we sell are made for use with plastic pipe that is Copper Tube Size (CTS), such as PEX. Since polybutylene has been discontinued since 1995, we cannot guarantee that these fittings will work on polybutylene pipe. If your pipe is CTS, these fittings may work, but we can only say for sure that these fittings will work on PEX and other CTS plastic pipe.

Q. "Can I use QickTite fittings to repair my hydronic heating piping?"
A. QickTite fittings are for use with basic residential plumbing. They are not designed for use with hydronic heating systems and they are not intended for use in recirculation systems of any kind.

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