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Main product image of 1/2" PEX to EK20 Loop Fitting Assembly
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1/2" PEX to EK20 Loop Fitting Assembly
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$7.63 each
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$73.60 box of 10
$7.36 each
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In Stock
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Product Highlights

Product Highlight: Connection Size
EK20 x 1/2" Connection
Product Highlight: Material
Brass
Product Highlight: Max Pressure (PSI)
200 MAX PSI
Product Highlight: Warranty
5 Year Warranty
Product Highlight: Thread Type
Female Thread Type
Product Highlight: Fitting System Compatibility
PEX Compression

Description

This fitting assembly is made of nickel-plated brass.

Specs

Connection Size:

EK20 x 1/2"

Product Type:

Loop Adapter

Material:

Brass

PEX Size:

1/2"

Application:

Heating

Accessory

Max Pressure (PSI):

200

Warranty:

5 Year

Thread Type:

Female

Fitting System Compatibility:

PEX Compression

Tubing Compatibility:

PEX

Max Temp (F):

200°F

Thread Size:

EK20

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Compare Similar Products

Brand
Connection Size
Product Type
Material
PEX Size
Application
CURRENT ITEM
Product Image of 1/2" PEX to EK20 Loop Fitting Assembly
1/2" PEX to EK20 Loop Fitting Assembly
SKU: 4310500
(27)
EK20 x 1/2"
Loop Adapter
Brass
1/2"
Heating
Accessory
EK20 x 1/2"
Loop Adapter
Brass
1/2"
Heating

You May Also Need

5-Loop Stainless Steel Radiant Heat Manifold
SKU: HM5
Bluefin

Product Reviews

4.44 out of 27 reviews
88% would recommend this product
4.44
out of 27 Reviews
88% would recommend this product
WRITE A REVIEW
5 star
74%
4 star
15%
3 star
0%
2 star
4%
1 star
7%
WRITE A REVIEW
Customer Images

Most Liked Positive Review

Stupid Easy to use

These are the assembly pieces to a radiant heating manifold. Now everything fit perfectly, was easy to use, and i didnt have a single leak. All of which was great but the best part was how easliy these could be taken apart and reassembled. I was upgrading my Radiators from Asbestos laced pipes to pex and after i filled the system complete i realized one of them had cracked. Instead of draining the whole system. I just closed the other loops and popped this guy off and drained just the one run. I was amazing. With climp i would have had to cut the pex and run a new line, ( i didnt leave myself enough extra)
VS

Most Liked Negative Review

bad design

I used these on a 10 loop manifold, 50% of the connections leaked, The O rings are not durable and cut when installing them, the cinch rings on some did not grab the pipe tight enough to seal against the rigs in the fitting, I was in a bind and had use a different manufacturers O rings off their fittings and cinch rings. I ended up using a little petroleum jelly on the fittings to get them to slide into the manifold so as not to rip them. I inserted the fitting into the manifold 1st then put the pex tube onto the pre-inserted fitting, I have done many many radiant jobs and this is the 1st time I have had trouble with sort of thing.
Showing 1-10 of 27 reviews

purchased to replace inferior product, this one works

simple and easy functional.
TM DIY
New York
8 months ago
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Great Company

Supply House has very competitive prices and wonderful customer support. They helped me with a problem that was not theirs to deal with but they bent over backwards anyway. Customer for life!
Happy Shopper
IN
2 years ago
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Worked as needed

Worked as needed to finish the hydronic radiant setup I made in my garage. Used to connect pex to the manifold
Snoopie
Massachusetts
3 years ago
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Built well

Worked Great
Sam
Idaho
3 years ago
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Would buy again

Used these on a 12 loop Bluefin manifold. Tip: Lubricate o rings and they work perfectly.
Randy
Missouri
3 years ago
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Just what I wanted. Would buy again if needed.

I bought a manifold from another company but they had the wrong size PEX adapters listed on their website, so I ended up being stuck with 5/8 adapters instead of the 1/2 inch ones I needed. These fit the bill perfectly and my system is working fine now.
Off grid homestead
Kenai peninsula, Alaska
4 years ago
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Needed item to make manifold work

Not too sure how to rate this item. Have to have it to use the manifold. They fit the 1/2" Pex just fine and screwed right up on the manifold and sealed just fine. Don't think there is anything else you could use, so it's a must have item.
garyr
Kansas City, Missouri
5 years ago
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Super easy, never leak

These work very well!
Dave
Pittsburgh,PA
5 years ago
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Great Value - Arrived quickly

Residential radiant floor heat - You need these to connect Bluefin Manifold to HePex tubing. If you purchase the Bluefin manifold, be sure and get these as well (1/2 inch - 5/8 inch etc)
Jim
Santa Fe New Mexico
5 years ago
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I would not buy again.

O rings are very soft. Had many cut when putting they together which caused leaks. Had to take many apart and replace with good o rings. Lots of lost time
butch
Zanesville, Ohio
6 years ago
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Product Q&A

5 Questions
5 Questions
ASK A QUESTION

Q: what size wrench is required to install the MA-50P?

Asked by andy 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

A standard wrench can be used to connect the compression connection.

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Q: will mr pex 4310500 1/2" pex to ek20 loop fitting work with 1/2" hepex tubing to conect to mr pex manifold 3231000?

Asked by Ed 12 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Yes, the fitting is compatible with any standard 1/2" Pex tubing.

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Q: Do you have to have the expansion tool to put these on the tubing?

Asked by Nate 12 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

No specialized PEX tools are needed to make connections with these fittings. Keep in mind that these fittings are designed to make connections to manifolds that have EK20 threaded outlets.

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-

No, any time there is a compression ring, compression nut, or crimp ring on the exterior or the tubing it is not an expansion style fitting. Sent from my Windows Phone

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-

Im sorry no you do not Sent from my Verizon Wireless 4G LTE Smartphone

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-

No expansion tool required Marc

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-

With the PEX tubing I used there was no need for an expansion tool. Made a clean cut on tubing and pushed bushing in by hand.

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-

No MD Peduto

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-

I use a dead blow hammer and tap them in.

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Q: Will this fitting work with Wirsbo Pex-Al-Pex 1/2" MultiCor and Rifeng Radiant Heat Manifold?

Asked by Rob 12 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

This fitting will not work with PEX-AL-PEX, but it is compatible with Rifeng manifolds. Use part 2410500 or MA-50PAP with 1/2" PEX-AL-PEX.

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Q: I purchased this PEX550703 3/8" Oxygen Barrier PEX Tubing and I'm wondering if I can use this fitting?

Asked by 2000cxa 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

This fitting (MA-38P) will work with your tubing, but it is designed to attach to Rifeng radiant heat manifolds. It only works with EK20 thread, which you won't find in many other places.

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