Coloplast Drainable Pouch Clamp, Latex-free -1 Each. Product is manufacturered and licensed by Coloplast . Product is categorized as a accessories for ostomy pouch closures. HCPCS: A4363 . Coloplast Drainable Pouch Clamp, Latex-free. Simple-closure clamp for extra security with drainable pouches is especially helpful for those with limited dexterity. Simple closure clamp for extra security.