Watts Radiant RadiantPEX-AL Compression Fittings

RadiantPEX-AL is a composite pipe engineered for radiant floor heating. We call it ALEX Pipe. It's proven, long lasting and maintenance-free. Installers like it because it's lightweight, durable and can be shaped to fit any jobsite. The aluminum layer protects boiler systems against corrosion and it has superior temperature and pressure ratings.

ALEX Pipe is manufactured to American Standard Testing Methods for composite radiant pipe and fittings (ASTM F-1281). Included are requirements and test methods for materials, workmanship, dimensions, environmental stress cracking, sustained hydrostatic pressure strength, thermo-cycling resistance and bend strength among other tests. RadiantPEX-AL meets or exceeds these specifications.

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- RadiantPEX-AL Brochure (500 KB Adobe PDF)
- RadiantPEX-AL Compression Fittings Brochure (3.5 MB Adobe PDF)
- General Installation Manual (4 MB Adobe PDF)
- Watts RadiantPEX-AL Catalog (1.4 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 receive 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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SST20 BSP Adapter
3/8 in. Compression x 3/4 in. SST20 BSP Adapter (Pack of 10) Weight: 1 lb Model#: RLC01B06T20-10 Order#: 81011138	$47.00
1/2 in. Compression x 3/4 in. SST20 BSP Adapter (Pack of 10) Weight: 1 lb Model#: RLC01B08T20-10 Order#: 81010735	$47.75
5/8 in. Compression x 3/4 in. SST20 BSP Adapter (Pack of 10) Weight: 2 lb Model#: RLC01B10T20-10 Order#: 81008088	$50.75
3/4 in. Compression x 3/4 in. SST20 BSP Adapter (Pack of 10) Weight: 2 lb Model#: RLC01B12T20-10 Order#: 81007735	$225.50
Compression x Male Sweat Adapter
3/8 in. Compression x 1/2 in. Male Sweat Adapter (Pack of 10) Weight: 1 lb Model#: RLC10B0608-10 Order#: 81011139	$37.25
1/2 in. Compression x 1/2 in. Male Sweat Adapter (Pack of 10) Weight: 1 lb Model#: RLC10B0808-10 Order#: 81010731	$37.25
5/8 in. Compression x 1/2 in. Male Sweat Adapter (Pack of 10) Weight: 1 lb Model#: RLC10B1008-10 Order#: 81008092	$48.50
5/8 in. Compression x 3/4 in. Male Sweat Adapter (Pack of 10) Weight: 2 lb Model#: RLC10B1012-10 Order#: 81008094	$56.00
3/4 in. Compression x 3/4 in. Male Sweat Adapter (Pack of 10) Weight: 2 lb Model#: RLC10B1212-10 Order#: 81008096	$66.50
1 in. Compression x 1 in. Male Sweat Adapter (Pack of 5) Weight: 3 lb Model#: RLC10B1616-5 Order#: 81008098	$53.00
Compression x Female Sweat Adapter
3/8 in. Compression x 1/2 in. Female Sweat Adapter (Pack of 10) Weight: 1 lb Model#: RLC11B0608-10 Order#: 81011140	$37.25
1/2 in. Compression x 1/2 in. Female Sweat Adapter (Pack of 10) Weight: 1 lb Model#: RLC11B0808-10 Order#: 81010732 (previously 81008100)	$38.75
5/8 in. Compression x 3/4 in. Female Sweat Adapter (Pack of 10) Weight: 2 lb Model#: RLC11B1012-10 Order#: 81008102	$50.00
3/4 in. Compression x 3/4 in. Female Sweat Adapter (Pack of 10) Weight: 2 lb Model#: RLC11B1212-10 Order#: 81008104	$68.25
1 in. Compression x 1 in. Female Sweat Adapter (Pack of 5) Weight: 2 lb Model#: RLC11B1616-5 Order#: 81013675	$55.25
Compression x MPT Adapter
1/2 in. Compression x 3/4 in. MPT Adapter (Pack of 10) Weight: 2 lb Model#: RLC12B0812-10 Order#: 81010729	$51.50
5/8 in. Compression x 3/4 in. MPT Adapter (Pack of 10) Weight: 2 lb Model#: RLC12B1012-10 Order#: 81008108	$53.00
3/4 in. Compression x 3/4 in. MPT Adapter (Pack of 10) Weight: 3 lb Model#: RLC12B1212-10 Order#: 81008110	$69.00
1 in. Compression x 1 in. MPT Adapter (Pack of 5) Weight: 3 lb Model#: RLC12B1616-5 Order#: 81008112	$53.00
Compression x FPT Adapter
1 in. Compression x 1 in. FPT Adapter (Pack of 5) Weight: 2 lb Model#: RLC13B1616-5 Order#: 81013676	$58.50
Compression x Male Sweat Elbows
1/2 in. Compression x 3/4 in. Male Sweat Elbow (Pack of 10) Weight: 2 lb Model#: RLC40B0812-10 Order#: 81010708	$78.75
5/8 in.Compression x 3/4 in. Male Sweat Elbow (Pack of 10) Weight: 3 lb Model#: RLC40B1012-10 Order#: 81008530	$81.00
3/4 in.Compression x 3/4 in. Male Sweat Elbow (Pack of 10) Weight: 3 lb Model#: RLC40B1212-10 Order#: 81008532	$83.25
Compression x Female Sweat Elbows
1/2 in. Compression x 3/4 in. Female Sweat Elbow (Pack of 10) Weight: 2 lb Model#: RLC41B0812-10 Order#: 81010710	$85.50
5/8 in. Compression x 3/4 in. Female Sweat Elbow (Pack of 10) Weight: 3 lb Model#: RLC41B1012-10 Order#: 81008536	$87.00
3/4 in. Compression x 3/4 in. Female Sweat Elbow (Pack of 10) Weight: 3 lb Model#: RLC41B1212-10 Order#: 81008538	$90.00
Compression Coupling
3/8 in. Compression Coupling (Pack of 10) Weight: 1 lb Model#: RLC15B0606-10 Order#: 81011141	$48.50
1/2 in. Compression Coupling (Pack of 10) Weight: 1 lb Model#: RLC15B0808-10 Order#: 81010716	$49.25
5/8 in. Compression Coupling (Pack of 10) Weight: 1 lb Model#: RLC15B1010-10 Order#: 81008116	$66.25
3/4 in. Compression Coupling (Pack of 10) Weight: 2 lb Model#: RLC15B1212-10 Order#: 81008118	$98.50
1 in. Compression Coupling (Pack of 5) Weight: 2 lb Model#: RLC15B1616-5 Order#: 81008120	$79.50
Compression Elbow
5/8 in. Compression Elbow (Pack of 10) Weight: 1 lb Model#: RLC19B1010-10 Order#: 81008122	$72.75
3/4 in. Compression Elbow (Pack of 10) Weight: 2 lb Model#: RLC19B1212-10 Order#: 81008124	$107.50
1 in. Compression Elbow (Pack of 5) Weight: 2 lb Model#: RLC19B1616-5 Order#: 81008127	$76.50
Compression Tee
3/4 in. Compression Tee (Pack of 10) Weight: 3 lb Model#: RLC18B121212-10 Order#: 81008129	$146.00
1 in. Compression Tee (Pack of 5) Weight: 3 lb Model#: RLC18B161616-5 Order#: 81008131	$124.75
3/4 in. x 3/4 in. x 1/2 in. Compression Reducing Tee (Pack of 10) Weight: 2 lb Model#: RLC18B121208-10 Order#: 81010646	$136.25
1 in. x 1 in. x 5/8 in. Compression Reducing Tee (Pack of 10) Weight: 3 lb Model#: RLC18B161610-10 Order#: 81008135	$219.25
1 in. x 1 in. x 3/4 in. Compression Reducing Tee (Pack of 5) Weight: 3 lb Model#: RLC18B161612-5 Order#: 81008137	$113.50
Extra Compression Fitting Insulator
3/8 in. Extra Compression Fitting Insulator (Pack of 10) Weight: .5 lb Model#: RLC43IN06-10 Order#: 81011165	$1.75
1/2 in. Extra Compression Fitting Insulator (Pack of 10) Weight: .5 lb Model#: RLC43IN08-10 Order#: 81010697	$1.75
5/8 in. Extra Compression Fitting Insulator (Pack of 10) Weight: .5 lb Model#: RLC43IN10-10 Order#: 81009456	$1.75
3/4 in. Extra Compression Fitting Insulator (Pack of 10) Weight: .5 lb Model#: RLC43IN12-10 Order#: 81009458	$1.75
1 in. Extra Compression Fitting Insulator (Pack of 10) Weight: .5 lb Model#: RLC43IN16-10 Order#: 81009460	$1.75
Extra Compression Fitting O-Ring
3/8 in. Extra Compression Fitting O-Rings (Pack of 10) Weight: .5 lb Model#: RLCOR06-10 Order#: 81011167	$2.00
1/2 in. Extra Compression Fitting O-Rings (Pack of 10) Weight: .5 lb Model#: RLC44OR08-10 Order#: 81010652	$2.00
5/8 in. Extra Compression Fitting O-Rings (Pack of 10) Weight: .5 lb Model#: RLC44OR10-10 Order#: 81008567	$2.50
3/4 in. Extra Compression Fitting O-Rings (Pack of 10) Weight: .5 lb Model#: RLC44OR12-10 Order#: 81008568	$2.75
1 in. Extra Compression Fitting O-Rings (Pack of 10) Weight: .5 lb Model#: RLC44OR16-10 Order#: 81008569	$3.25