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Watts Boiler Water Feed / Watts BackFlow Preventer
Prevents Boiler Water (Antifreeze) From Entering Domestic Water Supply

Watts Boiler Water Feed / Watts Back Flow Preventer

Watts Backflow Preventer Description

Dual Check Valve Type with Atmospheric Port used on boiler supply feed lines to prevent back flow when supply pressure falls below system pressure.
Model & Size Connection Your
Price 		Change quantity in your Shopping Cart. You can always remove items later.
9DS-M3
1/2 inch F x 1/2 inch F (sweat) 		Solder $52.75
$45.95
9D-M3
1/2 inch F x 1/2 inch F (npt) 		1/2" NPT
 (national pipe thread) 		$54.95
$44.95
9DS-M2
3/4 inch F x 3/4 inch F (sweat) 		Solder $52.75
$45.95
9D-M2
3/4 inch F x 3/4 inch F (npt) 		3/4" NPT
 (national pipe thread) 		$54.95
$44.95

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