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PEX Fittings

Westside Wholesale presents a line of high quality PEX fittings by Uponor Wirsbo , a world famous brand. Our online store aims to offer to our clients only the best products by the most reliable and reputable brands—Uponor manufacturer being among them.

The product line of PEX fittings we stock at Westside Wholesale comprise of various fitting assemblies with different dimensions including connection rings with stop fittings, elbow fittings, reducing tee fittings and many others that will meet needs and demands of our consumers for various applications.

The Uponor connection rings are made of special PEX material and are necessary to make a reliable ProPEX connection. The rings include a special leading edge chamfer as well as stop edge to make the further use of ProPEX fittings easy and convenient. These connection rings are flexible, have the smallest bend radius and highest degree of cross linking. They feature thermal and shape memory as well as greater resistance to crack propagation.

We also recommend purchasing special ProPEX plastic elbows that allow the making of 90 degree connections for PEX tubing in supply mains as well as return mains.

The Uponor Wirsbo compression fitting assembly is just an excellent example of a quality, durable cooling and heating product, one that was designed for connection of PEX tubing to brass manifolds as well as other R20 fittings. Furthermore, it is a top-quality product delivered by an approved industry leader.

All the items we stock at Westside Wholesale are backed up with warranty through the manufacturer, Uponor Wirsbo, in order to secure long-term convenient service for our clients. Westside Wholesale offers free shipping for any item bought in our online store.

1-30 of 42 products Sort by 
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Uponor Wirsbo A4020500

Uponor Wirsbo A4020500

Uponor Wirsbo QS-Style Compression Fitting Assembly - Radiant Heating & Cooling, 1/2" (R20 Thread)

Regular Price: $7.99
On Sale: $6.15
as low as: $5.54

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103 : $5.72 ea. (7% off)
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Uponor Wirsbo Q4760500

Uponor Wirsbo Q4760500

Uponor Wirsbo ProPEX EP Elbow Fitting - Plumbing, Heating & Cooling, 1/2" x 1/2" PEX

Regular Price: $1.99
On Sale: $0.99
as low as: $0.89

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Add 405 : $0.94 ea. (5% off)
639 : $0.92 ea. (7% off)
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Uponor Wirsbo Q4690512

Uponor Wirsbo Q4690512

Uponor Wirsbo ProPEX Connection Ring with Stop Fitting - Fire Safety, Plumbing, Radiant Heating & Cooling, 1/2"

Our Price: $0.16
as low as: $0.14

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Uponor Wirsbo Q4020500

Uponor Wirsbo Q4020500

Uponor Wirsbo ProPEX Fitting Assembly - Radiant Heating & Cooling, 1/2" (R20 Thread)

Our Price: $4.75
as low as: $4.28

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Uponor Wirsbo Q4690756

Uponor Wirsbo Q4690756

Uponor Wirsbo ProPEX Connection Ring with Stop Fitting - Fire Safety, Plumbing, Radiant Heating & Cooling, 3/4"

Our Price: $0.27
as low as: $0.24

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Uponor Wirsbo Q4760750

Uponor Wirsbo Q4760750

Uponor Wirsbo ProPEX EP Elbow Fitting - Plumbing, Heating & Cooling, 3/4" x 3/4" PEX

Regular Price: $1.99
On Sale: $1.25
as low as: $1.13

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506 : $1.16 ea. (7% off)
688+ : $1.13 ea. (10% off)
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Uponor Wirsbo Q4757550

Uponor Wirsbo Q4757550

Uponor Wirsbo ProPEX EP Reducing Tee Fitting - Plumbing, Radiant Heat & Cooling, 3/4" x 3/4" x 1/2" PEX

Regular Price: $1.99
On Sale: $1.32
as low as: $1.19

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479 : $1.23 ea. (7% off)
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Uponor Wirsbo Q4755050

Uponor Wirsbo Q4755050

Uponor Wirsbo ProPEX EP Tee Fitting - Plumbing, Radiant Heat & Cooling, 1/2" x 1/2" x 1/2" PEX

Regular Price: $1.99
On Sale: $0.99
as low as: $0.89

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Add 405 : $0.94 ea. (5% off)
639 : $0.92 ea. (7% off)
869+ : $0.89 ea. (10% off)
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Uponor Wirsbo Q2897575

Uponor Wirsbo Q2897575

Uponor Wirsbo 90 Degree ProPEX Copper Stub EII, 3/4" PEX x 3/4" Copper - Plumbing, 4" x 8"

Regular Price: $26.99
On Sale: $18.95
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Uponor Wirsbo Q4775050

Uponor Wirsbo Q4775050

Uponor Wirsbo ProPEX EP Coupling Fitting - Plumbing, Radiant Heating & Cooling, 1/2" x 1/2" PEX

Our Price: $0.80
as low as: $0.72

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Add 500 : $0.76 ea. (5% off)
790 : $0.74 ea. (7% off)
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Uponor Wirsbo A4020625

Uponor Wirsbo A4020625

Uponor Wirsbo Quick Seal Compression Fitting Assembly - Radiant Heating, 5/8" (R20 Thread)

Regular Price: $10.99
On Sale: $7.25
as low as: $6.53

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Add 56 : $6.89 ea. (5% off)
88 : $6.74 ea. (7% off)
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Uponor Wirsbo Q4387575

Uponor Wirsbo Q4387575

Uponor Wirsbo ProPEX Baseboard Elbow - Radiant Heating & Cooling, 3/4" PEX x 3/4" Copper Adapter

Our Price: $8.99
as low as: $8.09

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71 : $8.36 ea. (7% off)
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Uponor Wirsbo Q4350500

Uponor Wirsbo Q4350500

Uponor Wirsbo ProPEX EP Plug - Plumbing, Radiant Heating & Cooling, 1/2"

Regular Price: $0.99
On Sale: $0.62
as low as: $0.56

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1020 : $0.58 ea. (7% off)
1388+ : $0.56 ea. (10% off)
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Uponor Wirsbo Q4777575

Uponor Wirsbo Q4777575

Uponor Wirsbo ProPEX EP Coupling Fitting - Plumbing, Heating & Cooling, 3/4" x 3/4" PEX

Regular Price: $1.99
On Sale: $0.99
as low as: $0.89

Bundle Items & SAVE!

Add 405 : $0.94 ea. (5% off)
639 : $0.92 ea. (7% off)
869+ : $0.89 ea. (10% off)
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Uponor Wirsbo Q2247550

Uponor Wirsbo Q2247550

Uponor Wirsbo EP Branch Multi-Port Tee Fitting - Plumbing, 3/4" (4 Outlets)

Regular Price: $10.99
On Sale: $7.50
as low as: $6.75

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Add 54 : $7.13 ea. (5% off)
85 : $6.98 ea. (7% off)
115+ : $6.75 ea. (10% off)
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Uponor Wirsbo Q4757555

Uponor Wirsbo Q4757555

Uponor Wirsbo ProPEX EP Reducing Tee Fitting - Plumbing, Radiant Heat & Cooling, 3/4" x 1/2" x 1/2" PEX

Regular Price: $2.99
On Sale: $1.56
as low as: $1.40

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Add 257 : $1.48 ea. (5% off)
406 : $1.45 ea. (7% off)
552+ : $1.40 ea. (10% off)
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Uponor Wirsbo Q4775075

Uponor Wirsbo Q4775075

Uponor Wirsbo ProPEX EP Reducer Coupling, 1/2" PEX x 3/4" PEX

Regular Price: $2.99
On Sale: $1.73
as low as: $1.56

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Add 232 : $1.64 ea. (5% off)
366 : $1.61 ea. (7% off)
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Uponor Wirsbo Q4516375

Uponor Wirsbo Q4516375

Uponor Wirsbo ProPEX Brass Sweat Adapter - Plumbing, Radiant Heating & Cooling, 5/8" PEX x 3/4" Copper

Regular Price: $4.99
On Sale: $2.95
as low as: $2.66

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215 : $2.74 ea. (7% off)
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Uponor Wirsbo Q4506375

Uponor Wirsbo Q4506375

Uponor Wirsbo ProPEX Brass Fitting Adapter - Plumbing, Radiant Heating & Cooling, 5/8" PEX x 3/4" Copper

Regular Price: $3.99
On Sale: $2.50
as low as: $2.25

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Add 160 : $2.38 ea. (5% off)
253 : $2.33 ea. (7% off)
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Uponor Wirsbo Q4386375

Uponor Wirsbo Q4386375

Uponor Wirsbo ProPEX Baseboard Elbow - Radiant Heating & Cooling, 5/8" PEX x 3/4" Copper Adapter

Regular Price: $9.99
On Sale: $6.50
as low as: $5.85

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Add 62 : $6.18 ea. (5% off)
98 : $6.05 ea. (7% off)
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Uponor Wirsbo LF4515050

Uponor Wirsbo LF4515050

Uponor Wirsbo PEX Fitting for Heating and Plumbing Brass Sweat Adapter, 1/2" PEX x 1/2" Copper - Lead Free

Our Price: $2.03
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Uponor Wirsbo E6050010

Uponor Wirsbo E6050010

Uponor Wirsbo Quik Trak Silicone Sealant - Radiant Heating & Cooling, 10.3 Fl oz (300ml)

Regular Price: $11.99
On Sale: $8.00
as low as: $7.20

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79 : $7.44 ea. (7% off)
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Uponor Wirsbo Q4761000

Uponor Wirsbo Q4761000

Uponor Wirsbo ProPEX EP Elbow - Plumbing, Radiant Heating & Cooling, 1" x 1" PEX

Our Price: $2.58
as low as: $2.32

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Uponor Wirsbo Q4681000

Uponor Wirsbo Q4681000

Uponor Wirsbo ProPEX Connection Ring Fitting - Fire Safety, Plumbing, Radiant Heating & Cooling, 1" (Blue Print)

Our Price: $0.39
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Uponor Wirsbo A4020313

Uponor Wirsbo A4020313

Uponor Wirsbo Quick Seal Compression Fitting Assembly - Radiant Heating, 5/16" (R20 Thread)

Regular Price: $9.99
On Sale: $7.99
as low as: $7.19

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Add 51 : $7.59 ea. (5% off)
80 : $7.43 ea. (7% off)
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Uponor Wirsbo Q4757557

Uponor Wirsbo Q4757557

Uponor Wirsbo ProPEX EP Reducing Tee Fitting - Plumbing, Radiant Heat & Cooling, 3/4" x 1/2" x 3/4" PEX

Regular Price: $2.99
On Sale: $1.56
as low as: $1.40

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Add 257 : $1.48 ea. (5% off)
406 : $1.45 ea. (7% off)
552+ : $1.40 ea. (10% off)
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Uponor Wirsbo Q2237557

Uponor Wirsbo Q2237557

Uponor Wirsbo EP Flow-Through Multi-Port Tee Fitting - Plumbing, 3/4" x 3/4" (3 Outlets)

Regular Price: $8.99
On Sale: $5.95
as low as: $5.36

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Add 68 : $5.65 ea. (5% off)
107 : $5.53 ea. (7% off)
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Uponor Wirsbo D4521010

Uponor Wirsbo D4521010

Uponor Wirsbo MLC Press Fitting Brass Male Threaded Adapter - Radiant Heating, 1" MLC Tubing x 1" NPT

Our Price: $16.25
as low as: $14.63

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Add 25 : $15.44 ea. (5% off)
39 : $15.11 ea. (7% off)
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Uponor Wirsbo Q2247557

Uponor Wirsbo Q2247557

Uponor Wirsbo EP Flow-Through Multi-Port Tee Fitting - Plumbing, 3/4" x 3/4" (4 Outlets)

Regular Price: $10.99
On Sale: $7.25
as low as: $6.53

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Add 56 : $6.89 ea. (5% off)
88 : $6.74 ea. (7% off)
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Uponor Wirsbo Q4710750

Uponor Wirsbo Q4710750

Uponor Wirsbo ProPEX Brass Elbow Fitting - Fire Safety, Plumbing, Radiant Heating & Cooling, 3/4" x 3/4" PEX

Our Price: $6.10
as low as: $5.49

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Add 66 : $5.80 ea. (5% off)
104 : $5.67 ea. (7% off)
141+ : $5.49 ea. (10% off)
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1-30 of 42 products Sort by 
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How to Select

How to Shop for Pex Fittings

Pex fittings are tools and essentials elements of pex tubing systems that ensure connection from pex tubing to pex tubing and manifolds or from pex tubing to various metal tubing and fixtures. Therefore, pex fixtures involve a wide collection of different pex tubing components that are made from a flexible, durable and strong material such as pex (cross-linked polyethylene), in addition to brass, copper or stainless steel. Pex tubing and fittings are the best solution for residential and commercial potable water supply as they are corrosion resistant, environmentally friendly and are much easier to install than other types of plumbing systems.

There are various kinds of pex fittings such as elbows, reducers, end caps, adapters, tees, straight couplings and unions that differ by size, diameter, bend radius and applications. In addition, the fittings can be of different styles, such as propex, compression or sharkbite connection principles.

Propex, or expansion style fittings are most popular tools that represent the standard connection method. These fittings are available in brass and cross-linked polyethylene and they can be used for pex-al-pex connection. They require special tools such as a copper crimp ring and expander that is placed outside the tubing while the fitting is placed inside. Special tools should be used subsequently to tighten the ring over the tube. This method ensures the tightest and the most reliable connection and it allows minimizing the number of tubing system connections required.

Compression fittings don’t require any special tools; therefore they are the best solution for small, not complicated or one-time projects and can be easily used by any handyman for household applications. A common compression fitting consists of a compression insert, a compression ring and a compression nut. These fittings can be installed by means of wrenches of concealed type or a pair of pliers. An insert should slide inside the tubing while a nylon ring and a nut are placed over the tubing and tightened by wrenches.

Sharkbite connections are based on the pull-push principle, it needs no special tools and it is the simplest way of pex pipe installations. These fitting come with grab rings equipped by small teeth that grip the tube tightly and o-ring protector that aligns the pipe. The pipe passes through the fitting, grab ring and o-ring protector that is subsequently compressed tightly between the fitting and the pipe in order to establish a solid connection.

Any of these fitting types will provide users with cost efficient ease of use. Not only that, these products can be installed easily, they are maintenance and energy efficient and they are on sale at Westside Wholesale for low affordable rates!