Watts Radiant Onix Fittings

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.
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- Onix Radiant Tubing Brochure (540 KB Adobe PDF)
- Onix Fact Sheet (1.2 MB Adobe PDF)
- Onix Installation Guide (7MB Adobe PDF)
- Watts Onix Radiant Brochure (1.2 MB Adobe PDF)

Items that are not in stock will be ordered into our warehouse and immediately shipped out to the customer. We will notify the customer of stock status at the time we recieve the order. To be on the safe side, plan your project ahead of time and allow a couple of weeks for delivery.

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Onix x Male Sweat Adapter
3/8 in. Onix x 1/2 in. Male Sweat Adapter (Pack of 10) Model#: 684001-10 Order#: 81000659	$20.00
3/8 in. Onix x 1/2 in. Male Sweat Adapter (Pack of 50) Model#: 684001-50 Order#: 81000660	$97.00
1/2 in. Onix x 1/2 in. Male Sweat Adapter (Pack of 10) Model#: 685001-10 Order#: 81000663	$21.00
1/2 in. Onix x 1/2 in. Male Sweat Adapter (Pack of 50) Model#: 685001-50 Order#: 81000664	$103.00
5/8 in. Onix x 1/2 in. Male Sweat Adapter (Pack of 10) Model#: 686001-10 Order#: 81000667	$26.00
5/8 in. Onix x 1/2 in. Male Sweat Adapter (Pack of 50) Model#: 686001-50 Order#: 81000668	$130.00
3/4 in. Onix x 3/4 in. Male Sweat Adapter (Pack of 10) Model#: 687001-10 Order#: 81000671	$47.00
3/4 in. Onix x 3/4 in. Male Sweat Adapter (Pack of 50) Model#: 687001-50 Order#: 81000672	$236.00
1 in. Onix x 1 in. Male Sweat Adapter (Pack of 10) Model#: 688001-10 Order#: 81000675	$63.00
Onix x BSP Swivel Fitting
3/8 in. Onix x 3/4 in. BSP Swivel Fitting (Pack of 10) Model#: 689001-10 Order#: 81000679	$50.00
1/2 in. Onix x 3/4 in. BSP Swivel Fitting (Pack of 10) Model#: 689002-10 Order#: 81000681	$48.00
5/8 in. Onix x 3/4 in. BSP Swivel Fitting (Pack of 10) Model#: 689003-10 Order#: 81000683	$57.00
3/4 in. Onix x 3/4 in. BSP Swivel Fitting (Pack of 10) Model#: 689004-10 Order#: 81000684	$62.00
Onix x Female Sweat Elbow
1/2 in. Onix x 3/4 in. Female Sweat Elbow (Pack of 10) Model#: 185074-10 Order#: 81000116	$42.00
5/8 in. Onix x 3/4 in. Female Sweat Elbow (Pack of 10) Model#: 185625-10 Order#: 81000120	$46.00
3/4 in. Onix x 3/4 in. Female Sweat Elbow (Pack of 10) Model#: 185075-10 Order#: 81000118	$52.00
Onix x Male Sweat Elbow
1/2 in. Onix x 3/4 in. Male Sweat Elbow (Pack of 10) Model#: 186074-10 Order#: 81010464	$41.00
5/8 in. Onix x 3/4 in. Male Sweat Elbow (Pack of 10) Model#: 186625-10 Order#: 81010466	$45.00
3/4 in. Onix x 3/4 in. Male Sweat Elbow (Pack of 10) Model#: 186075-10 Order#: 81010465	$51.00
Onix x Onix Coupling
3/8 in. Onix Coupling (Pack of 10) Model#: 677062-10 Order#: 81000611	$13.00
1/2 in. Onix Coupling (Pack of 10) Model#: 677082-10 Order#: 81000615	$18.00
5/8 in. Onix Coupling (Pack of 10) Model#: 677101-10 Order#: 81000618	$24.00
3/4 in. Onix Coupling (Pack of 10) Model#: 677121-10 Order#: 81000621	$32.00
1 in. Onix Coupling (Pack of 10) Model#: 677122-10 Order#: 81000623	$55.00
With Mini Ball Valves
In-Line Mini Ball Valve with 3/8 in. Barbs Model#: 850020 Order#: 81000748	$20.00
In-Line Mini Ball Valve with 1/2 in. Barbs Model#: 850022 Order#: 81000750	$20.00
In-Line Mini Ball Valve with 5/8 in. Barbs Model#: 850023 Order#: 81000751	$21.00
3/8 in. Onix x 1/2 in. Male Swt (Cu Ftg) Mini Ball Valve Model#: 446105 Order#: 81000366	$10.00
3/8 in. Onix x 1/2 in. Male Swt (Cu Ftg) Mini Balancing Valve Model#: 445425 Order#: 81005415	$17.00

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