GENERAL DESCRIPTION: THIS IS A WATER LINE CHECK VALVE VALVE TYPE: SPRING OR SWING SPRING TYPE SPRING STRENGTH: 1/2 LBS. MATERIAL: CLEAR SCHEDULE 40 PVC PIPING CONNECTIONS: 1-1/2" SLIP 1-1/2" PIPE WILL GLUE INSIDE (ACTUAL ID 1-15/16") DEPTH OF PLUMBING CONNECTION: 1-3/8" (THIS IS HOW FAR THE PIPE WILL EXTEND INTO THE SLIP FITTING) TOTAL LENGTH: 6-3/4" MAXIMUM OUTSIDE DIAMETER: 3-3/16"