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We carry a wide selection of fittings for radiant heating tubing. Shop our selection or let our experts help you find exactly what you need.

Learn More About Watts Radiant RLC12B1012-10
Watts Radiant
Watts Radiant - RLC12B1012-10 - 5/8" PEX-AL-PEX Compression x 3/4" MNPT - Adapter - Quantity: 10 - Order Number: 81008108
$221.50
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC12B1212-10
Watts Radiant
Watts Radiant - RLC12B1212-10 - 3/4" PEX-AL-PEX Compression x 3/4" MNPT - Adapter - Quantity: 10 - Order Number: 81008110
$288.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC13B1616-5
Watts Radiant
Watts Radiant - RLC13B1616-5 - 1" PEX-AL-PEX Compression x 1" FNPT - Adapter - Quantity: 5 - Order Number: 81013676
$241.50
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC15B0606-10
Watts Radiant
Watts Radiant - RLC15B0606-10 - 3/8" PEX-AL-PEX Compression - Coupling - Quantity: 10 - Order Number: 81011141
$201.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC15B1212-10
Watts Radiant
Watts Radiant - RLC15B1212-10 - 3/4" PEX-AL-PEX Compression - Coupling - Quantity: 10 - Order Number: 81008118
$408.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC15B1616-5
Watts Radiant
Watts Radiant - RLC15B1616-5 - 1" PEX-AL-PEX Compression - Coupling - Quantity: 5 - Order Number: 81008120
$331.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC19B1212-10
Watts Radiant
Watts Radiant - RLC19B1212-10 - 3/4" PEX-AL-PEX Compression - Elbow Coupling - Quantity: 10 - Order Number: 81008124
$443.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC18B121212-10
Watts Radiant
Watts Radiant - RLC18B121212-10 - 3/4" PEX-AL-PEX Compression - Equal Tee - Quantity: 10 - Order Number: 81008129
$600.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RFA-32X100MPT
Watts Radiant
Watts Radiant - RFA-32X100MPT - 32mm - Compression x 1" MNPT - Adapter - Order Number: 81012553
$109.50
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Learn More About Watts Radiant RFA-40X125MPT
Watts Radiant
Watts Radiant - RFA-40X125MPT - 40mm - Compression x 1-1/4" MNPT - Adapter - Order Number: 81012554
$144.50
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Learn More About Watts Radiant RFA-50X150MPT
Watts Radiant
Watts Radiant - RFA-50X150MPT - 50mm - Compression x 1-1/2" MNPT - Adapter - Order Number: 81012665
$186.00
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Learn More About Watts Radiant RFA-63X200MPT
Watts Radiant
Watts Radiant - RFA-63X200MPT - 63mm - Compression x 2" MNPT - Adapter - Order Number: 81012556
$340.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant 663029-10
Watts Radiant
Watts Radiant - 663029-10 - 3/4" SelfTite Clamps - Quantity: 10 - Order Number: 81000532
$60.75
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Learn More About Watts Radiant 689001-10
Watts Radiant
Watts Radiant - 689001-10 - 3/4" BSP to 3/8" Onix Barb Fitting - Quantity: 10 - Order Number: 81000679
$218.50
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant 689004-10
Watts Radiant
Watts Radiant - 689004-10 - 3/4" BSP to 3/4" Onix Barb Fitting - Quantity: 10 - Order Number: 81000684
$355.50
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant 660085
Watts Radiant
Watts Radiant - 660085 - 1/2" Onix SelfTite Repair Kit - Order Number: 81000509
$47.25
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Learn More About Watts Radiant 660075
Watts Radiant
Watts Radiant - 660075 - 3/8" Onix SelfTite Repair Kit - Order Number: 81000507
$45.25
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Learn More About Watts Radiant 660125
Watts Radiant
Watts Radiant - 660125 - 3/4" Onix SelfTite Repair Kit - Order Number: 81000513
$68.00
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Learn More About Watts Radiant RLC15B1010-10
Watts Radiant
Watts Radiant - RLC15B1010-10 - 5/8" PEX-AL-PEX Compression - Coupling - Quantity: 10 - Order Number: 81008116
$274.50
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC0515B0808-10
Watts Radiant
Watts Radiant - RLC0515B0808-10 - 1/2" PEX-AL-PEX Compression - Coupling - Quantity: 10 - Order Number: 81010716
$207.00
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Free Shipping
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Watts Radiant RLC0511B0808-10
Watts Radiant
Watts Radiant - RLC0511B0808-10 - 1/2" PEX-AL-PEX Compression x 1/2" Female Sweat - Adapter - Quantity: 10 - Order Number: 81010732
$162.00
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Learn More About Watts Radiant 684001-10
Watts Radiant
Watts Radiant - 684001-10 - 3/8" Onix Male Sweat Fitting - Quantity: 10 - 1/2" Male Sweat - Order Number: 81000659
$82.25
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Learn More About Watts Radiant RLC0510B0808-10
Watts Radiant
Watts Radiant - RLC0510B0808-10 - 1/2" PEX-AL-PEX Compression x 1/2" Male Sweat - Adapter - Quantity: 10 - Order Number: 81010731
$159.50
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