1-1/2 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
Solvent welds to sch. 40 ABS and PVC DWV pipe
Deeper design provides stronger leak free connections than 'wafer' caps