COUPLING

COUPLING is rated 4.0 out of 5 by 8.
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Information

The SharkBite Polymer Push-to-Connect Coupling is an efficient way to join multiple different materials with no specialty tools, solder, unions or glue required. These fittings are lead-free compliant, corrosion resistant, and are compatible with Polyethylene, Nylon, PEX, Soft Copper (must be round and in good condition). Installation is simple, simply push the tubing into the fitting and the stainless steel teeth will grip onto the pipe while a special EPDM O-ring compresses, forming a perfect watertight seal. Approved applications include: water filtration, reverse osmosis systems, ice makers, home/office coffee and beverage dispensing equipment, aquariums, air, gases, vacuum and liquids.

Approvals

NSF/ANSI 61

SizesPart #
1/4" OD x 1/4" OD
25421
5/16" OD x 1/4" OD
25422
5/16" OD x 5/16" OD
25423
3/8" OD x 1/4" OD
25424
3/8" OD x 3/8" OD
25425
1/2" OD x 1/2" OD
25426

Reviews

Rated 5 out of 5 by from My GE refrigerator sprung a leak in the waterline when I was out of town and the handyman I sent ... My GE refrigerator sprung a leak in the waterline when I was out of town and the handyman I sent told me I'd need a technician to reinstall it because the condo developer had taken shortcuts and jimmy-rigged the connection using wrap-ties to connect two mismatched tubes. I didn't want to spend 99 bucks for someone to come and tell me I needed a waterline, so I researched pipe connections and found this idea on Youtube. It is the best $8 bucks I've spent. It is so easy to install and made a pro-job look so simple. No leaks...I am very pleased.
Date published: 2016-12-28
Rated 1 out of 5 by from GARBAGE!!! IT ENDS UP CUTTING THE TUBE SO WITHIN FEW HOURS WATER IS LEAKING. I EVEN DROVE BACK TO... GARBAGE!!! IT ENDS UP CUTTING THE TUBE SO WITHIN FEW HOURS WATER IS LEAKING. I EVEN DROVE BACK TO HOME DEPOT AND BOUGHT ANOTHER UNIT BECAUSE I THOUGHT THE FIRST ONE WAS DEFECTIVE. I PUT IT ON AND EVERYTHING WAS GOOD, NO LEAKS. FEW HOURS LATER IS WAS LEAKING AND CUT THE TUBE AGAIN. SO I REMOVED THE BROKEN PEICE AND REATTCHED IT, NO LEAKS. I WAKE UP THIS MORNING AND TESTED THE WATER LINE AND YOU GUESSED IT, IT LEAKS. THE PART IS JUNK!! I AM ONLY USING IT FOR THE WATER LINE THAT IS ON BACK OF FRIDGE FOR THE ICE MAKER. I HAD TO ORDER PART NUMBER WR02X11330 FRO GE AND HOPE THAT ONE WILL NOT LEAK. THESE PARTS ARE GARBAGE. THERE IS ANOTHER REVIEW ON HOME DEPOT OF THIS BRAND DOING THE SAME THING.
Date published: 2017-05-13
Rated 5 out of 5 by from If they leak, you're doing it wrong. I have used dozens of these fittings in my home (I'm not a plumber, just a DIY guy) and they never leak if installed properly. First, make sure you have the right fitting and tubing. John Guest, Pex, Shark Bite, they all make metric and imperial sizes. They look the same, but they are not! Second, you have to have a clean cut on your tubing, no burrs, and most importantly, not "out of round". If you arent using the proper cutter and are using wire cutters, tin snips, or whatever tool you have lying around, it's easy to smash the end of the tubing so it isnt perfectly round any more. This slightly oval end will leak every time. So! Use the right parts and the right tools and you will have no problems. And no leaks. :-)
Date published: 2017-08-17
Rated 5 out of 5 by from My refrigerator plastic water line broke near door hinge. I bought this coupling to repair, and ... My refrigerator plastic water line broke near door hinge. I bought this coupling to repair, and it was easy to install this coupling. If you are considering this coupling for similar repair, ensure that your tube diameter matches the dia of this coupling. If it's not exact, it won't fit.
Date published: 2017-08-24
Rated 5 out of 5 by from This is a fast and dependable way of connecting without... This is a fast and dependable way of connecting without having to use screw-on tighteners.
Date published: 2017-07-04
Rated 5 out of 5 by from I've used quite a few of these and similar for RO water systems and not one leak. I make sure I u... I've used quite a few of these and similar for RO water systems and not one leak. I make sure I use a tubing cutter to get a clean and square cut and apply a little silicone grease. Then I make doubly sure that I've pushed the tubing completely into the fitting. They work great, fast and leak free with no worries about under or over tightening a fitting.
Date published: 2018-02-10
Rated 1 out of 5 by from These fittings do nothing but leak. These fittings do nothing but leak.
Date published: 2017-02-14
Rated 5 out of 5 by from Worked as expected.... Worked as expected.
Date published: 2017-12-26
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Questions

Repairing preexisting copper line from water heater. Pipe is 3/4 inch and has came apart at a reducing tee (1/2 inch). Is IMPOSSIBLE to resodder the joint back. What fitting could I attach to the tee & then attach the line to?

Asked by: dwh1134
Hello, Thank you for contacting SharkBite. Part # U412LF is a 3/4" x 3/4" x 1/2" reducing tee (3/4" on both sides of the run and 1/2" on the branch) and part # U444LF is a 3/4" x 1/2" x 3/4" reducing tee (3/4" x 1/2" on the run and 3/4" on the branch). Please see the link below. We recommend contacting a plumber for assistance with with soldering pipe. http://www.sharkbite.com/product/reducing-tees/ Thank you
Answered by: SharkBite118
Date published: 2018-04-13

is this suitable for use in a truck air suspention system? if so, what is the psi rating?

Asked by: krisf
Hello, Unfortunately, our push-to-connect fittings are not suitable for use with suspension systems. Thank you
Answered by: SharkBite118
Date published: 2018-04-11

Do you make them that would work for a vehicles transmission line, high heat and 40 psi?

Asked by: Jeremy W
Hello, Unfortunately, we do not offer any products suitable for a vehicles transmission line. Thank you
Answered by: SharkBite118
Date published: 2018-03-05

I am trying to repair a leaking 5/16" plastic water line on the back of my refrigerator with a Shark Bite *835035 Straight Coupling. I believe that I have followed all of the instructions but I still have a leak in one of the coupling's inlets.

Asked by: Bill P
Hello, Please contact our customer service department at 877-700-4242 so we can go over approved pipe/tube types and proper installation procedure. Thank you
Answered by: SharkBite118
Date published: 2018-01-24

Will a shark bite fitting work on polybutylene tubing. I am remodeling a home and wish to connect to the polybutylene existing in the walls. The piping in the floor has been replaced with pex.

Asked by: fredh
Hello, The only fittings that are suitable for use with polybutylene tubing are our polybutylene transition couplings. These couplings are designed for transitioning from polybutylene to copper, PEX, CPVC, PE-RT or HDPE pipe/tubing. Please see the link below. http://www.sharkbite.com/product/polybutylene-transition-couplings/ Thank you
Answered by: SharkBite118
Date published: 2018-04-03

Do you make a SharkBite Polymer Push-to-Connect Coupling 1/2" OD X 1/4" OD ?

Asked by: Lon S
Hello, At this time we do not offer a 1/2" OD x 1/4" OD polymer push-to-connect coupling. http://www.sharkbite.com/product/coupling/ Thank you
Answered by: SharkBite118
Date published: 2017-12-12

Would your fitting 25425 work with gasoline fuel lines at about 50psi?

Asked by: Dilip S
Good morning, We would not recommend using it with fuel lines. The gasoline may break down the rubber o-ring.
Answered by: SharkBite_KM
Date published: 2017-12-04

I am using Shark Bite U855W50 PEX Tubing, 3/8-Inch (1/2 O.D.), need reducing coupling to 1/4" fridge supply line, but cant find any at local hardware store. I guess shark bite brand pex is a larger od than other pex.

Asked by: Paul Holling
Good morning, Our PEX meets Copper Tube Size (CTS) standards. CTS is measured off the ID of the pipe. We currently do not offer a 3/8" x 1/4" compression fitting (to connect to fridge line). Part Number 23336-0000LF is designed to go from 1/2" to 1/4" compression (fridge line).
Answered by: SharkBite_KM
Date published: 2017-11-14
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