The Patented Replaceable Neck Seal Series is designed for quick and simple neck seal replacement between patients; easier neck seal trimming and one-person assembly. The two-piece neck ring has larger opening for patient comfort; raised ports to stop drainage into tubing; (2)port caps, inner and outer o-rings and an accessory port. Neck ring is multi-patient use and autoclaveable. Replaceable Latex Neck Seal is single-patient, multi-use. Large Hood contains two additional 22mm ports and measures 12 3/8” (314mm) x 11 ½” (291 mm). Hood is multi-patient use.