Quick view Fernco Fernco PVC 8" Flexible Qwik Cap QC-108 Compare $26.57 Suitable for above or below ground use as an permanent solution to cap pipe ends, test pipes and cleanouts. Fits 8" PL, 8" CI, 8" Copper, 8" ST, 8" SS, 6" West Coast Clay Cap inside diameter 8.50" 8.25" - 8.70" 5/16" Nut Tighten to 60 lbs... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List