30153 Size: 3" Features: -Slip cap. -Designed with dome shaped top. -PVC Schedule 40 pressure fittings. -Ideal for cold water pressure applications. -Used in irrigation, underground residential sprinkler system, water service pipe, deionized water lines, swimming pool installations and some chemical drainage systems. -Meets ASTM D2467. -Dimensions: 1-5" H x 1-5" W x 1-5" D.