what is the output line? 1/2 inch pex?

The bottom output is in 3/4 inch - the two top inputs are also in 3/4 inch - the line outputs are all in 1/2 inch. This product is made of PEX material, not metal. And main inlet and outlet adapters are not included. Please add #50141 manabloc adapters and/or V5036.10 manabloc end cap to complete installation.

Can one use a regular pex crimps?

Make sure you get the pex crimp version. This one has the pex tubing attach with Compression fittings that need a special wrench from Viega to be able to easily do them all.

does this include the supply adaptors for the 14 ports?

Those are the outlets and it has more than enough. Just make sure you order the manibloc that has what you want. Some are 1/2 in pex crimps, some are others. Make sure you read the ad to see which one. You will need 2 supply adaptors and a cap or three supply adaptors and no cap depending on how you're using it. Those are separate

can this manifold be installed in a crawl space?

I installed the one that I got in the crawl space under our cabin in an insulated box that we built for our hot water heater. During freezing temperatures when the water lines are not drained the manifold is kept warm by the residual heat given off by the water heater. if the manifold has water in it and the temps reach freezing, the manifold will probably break. Unlike pex plumbing, the manifold is not designed to freeze without breaking.

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50143 - 1/2-Inch PureFlow Zero Lead Poly Alloy PEX Crimp Manabloc With 14 Ports - 8 Cold 6 Hot

Product ID: 18527277

Details

Brand
Viega
Color
Black Blue Red
Connector Type
Adapter
Exterior Finish
Metal
Item Weight
5.4 pounds
Item dimensions L x W x H
17.63 x 4.5 x

💧Zero lead poly alloy ensures pure, safe water

🔇Reduced flow noise for quiet operation

🔧14-port manifold for precise water control

A$466

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚿 Elevate your home’s water game with Viega’s PureFlow Manabloc!

PURE FLOW ZERO LEAD SAFETY - Poly alloy construction guarantees corrosion-free, lead-free water
WHISPER QUIET PERFORMANCE - Engineered to minimize flow noise for a peaceful home environment
EASY LEAK FREE INSTALLATION - Crimp connections and adapter ports simplify setup and ensure reliability
PRECISION WATER DISTRIBUTION - 14 ports (8 cold, 6 hot) for tailored plumbing setups
CHLORINE RESISTANT DURABILITY - Built to withstand harsh water conditions, extending system life

The Viega 50143 PureFlow Manabloc is a 14-port (8 cold, 6 hot) zero lead poly alloy PEX crimp manifold designed for efficient, safe, and quiet water distribution. Featuring corrosion-resistant materials and chlorine resistance, it ensures long-lasting performance and easy installation with reliable crimp connections, making it a top choice for modern plumbing systems.

Specifications

ASIN	B008J33LJC
Best Sellers Rank	#130,059 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,748 in Pipe Fittings
Brand Name	Viega
Color	Black, Blue, Red
Connector Type	Adapter
Customer Reviews	4.4 4.4 out of 5 stars (620)
Exterior Finish	Metal
Global Trade Identification Number	30691514501438
Item Dimensions	17.63 x 4.5 x 9 inches
Item Weight	5.4 pounds
Manufacturer	Viega PEX
Manufacturer Part Number	50143
Manufacturer Warranty Description	Limited Warranty
Material Type	Plastic
Model Number	50143
Number of Packs	1
Number of Pieces	1
Size	14 Port, 6 Hot, 8 Cold
Thread Size	0.5 inch
Thread Type	NPT
UPC	691514501437 767654782866 733353624240

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