Directory: Catalog > Radiant Heating > Watts Radiant Pipe, Fittings, Manifolds, Etc.

Flexible TubingWatts Radiant Onix Radiant Tubing

Onix is the fastest, friendliest, and safest radiant heat tube you can specify or install. It installs with less labor and takes jobsite abuse better than any other radiant tubing. Onix is Aramid reinforced EPDM with an aluminum oxygen barrier.

Onix is the product that can be installed with lifelong confidence in blazing heat and sunlight, or in Arctic frost and shadows. Used for commercial snowmelting, space heating, residential staple-up and supply/return lines, you'll find Onix installed in thousands of quality projects every year. Onix is ICC listed.

Download Literature: Loading times will vary depending on the speed of your Internet connection. After the download is complete, use your browser's back arrow to return to this page.


NOTE: Availability for the Watts product line varies on the item and season. Lead time for non-stock items is generally 2 weeks. If your need is urgent, please Contact Us to check on availability for these products.

Place Order Securely:
(Personal information is entered on our secured server at time of checkout.)
3/8 in. Onix Pipe
3/8 in. Onix x 160 ft Coil
Weight: 29 lbs.
Model#: 086061-160
Order#: 81001558
3/8 in. Onix x 180 ft Coil
Weight: 32 lbs.
Model#: 086061-180
Order#: 81001559
3/8 in. Onix x 200 ft Coil
Weight: 36 lbs.
Model#: 086061-200
Order#: 81001560
3/8 in. Onix x 600 ft Spool
Weight: 108 lbs.
Model#: 086061-600
Order#: 81001565
1/2 in. Onix Pipe
1/2 in. Onix x 200 ft Coil
Weight: 46 lbs.
Model#: 086081-200
Order#: 81001579
1/2 in. Onix x 250 ft Coil
Weight: 58 lbs.
Model#: 086081-250
Order#: 81001582
1/2 in. Onix x 300 ft Coil
Weight: 69 lbs.
Model#: 086081-300
Order#: 81001584
1/2 in. Onix x 400 ft Spool
Weight: 92 lbs.
Model#: 086081-400
Order#: 81001587
1/2 in. Onix x 600 ft Spool
Weight: 138 lbs.
Model#: 086081-600
Order#: 81001590
5/ 8 in. Onix Pipe
5/8 in. Onix x 200 ft Coil
Weight: 50 lbs.
Model#: 086101-200
Order#: 81001603
5/8 in. Onix x 300 ft Coil
Weight: 75 lbs.
Model#: 086101-300
Order#: 81001605
5/8 in. Onix x 400 ft Spool
Weight: 100 lbs.
Model#: 086101-400
Order#: 81001609
5/8 in. Onix x 600 ft Spool
Weight: 150 lbs.
Model#: 086101-600
Order#: 81001616
3/4 in. Onix Pipe
3/4 in. Onix x 100 ft Coil
Weight: 35 lbs.
Model#: 086121-100
Order#: 81001627
3/4 in. Onix x 200 ft Coil
Weight: 70 lbs.
Model#: 086121-200
Order#: 81001629
3/4 in. Onix x 300 ft Coil
Weight: 105 lbs.
Model#: 086121-300
Order#: 81001631
3/4 in. Onix x 400 ft Spool
Weight: 140 lbs.
Model#: 086121-400
Order#: 81001634


What makes Onix so well suited for radiant heat and snow melting applications?

Cross-linked Durel EPDM is extruded into a tube and wrapped with an AlumaShield barrier and a second layer of EPDM. This composite tube is reinforced with 1000 denier aramid cord, the same incredibly tough and heat resistant material used to make fire and bullet proof shields. A final outer jacket of EPDM is applied. The result is a durable, flexible tubing formed of five heat and age resistant materials, proven in tens of thousands of installations over the years.

One of the best features of Onix tubing is its aluminum barrier layer, AlumaShield™. Unlike plastic barriers, AlumaShield is unaffected by sunlight, UV radiation from fluorescent lamps, moisture, or elevated temperatures. Due to its placement inside the tube, the AlumaShield barrier can't be scraped off or damaged by typical job site abuse.