Sioux Chief Knock-Out 3 in. ABS Test Cap Knockout

3 inch Knock-Out Test Cap Solvent cements to Sch. 40 ABS and PVC DWV pipe. Deeper design provides stronger leak-free connections. Knock-out center can be removed with tab preventing possible blockages. Tab feature keeps hands free of solvent cement. Will withstand 17 PSI or 40' head pressure. Made of white ABS