Oatey 4 In. Single Size Test Ball Dryer Duct Suitable For Masonry Walls

Suitable For Masonry Walls

excellent stain blocking resistance

Use as little as 1½ teaspoons per gallon

Water Heater/Range/Dryer - 1/2" OD Flare x 1/2" FIP Straight Gas Ball Valve

porus concrete and heavy textured carpet backings may require deeper notches

Oatey 4 In. Single Size Test Ball Dryer Duct Suitable For Masonry WallsSingle Size Test Ball is a must for those involved in the installation and repair of residential, commercial and industrial pipping systems. Can be used for head pressure testing or as a blocking plug for low pressue air testing. Easily fits test tees, sanitary tees, floor drains and roof vents. Much more flexible than traditional mechanical plugs. Made from long lasting, natural rubber. Molded with Cherne's trademarked rib design. Includes a 12 In.